// API callback
showrecentcomments({"version":"1.0","encoding":"UTF-8","feed":{"xmlns":"http://www.w3.org/2005/Atom","xmlns$openSearch":"http://a9.com/-/spec/opensearchrss/1.0/","xmlns$gd":"http://schemas.google.com/g/2005","id":{"$t":"tag:blogger.com,1999:blog-22973357.comments"},"updated":{"$t":"2020-11-18T12:22:45.723-05:00"},"title":{"type":"text","$t":"Sabine Hossenfelder: Backreaction"},"link":[{"rel":"http://schemas.google.com/g/2005#feed","type":"application/atom+xml","href":"http:\/\/backreaction.blogspot.com\/feeds\/comments\/default"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/comments\/default?alt=json-in-script"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/"},{"rel":"hub","href":"http://pubsubhubbub.appspot.com/"},{"rel":"next","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/comments\/default?alt=json-in-script\u0026start-index=26\u0026max-results=25"}],"author":[{"name":{"$t":"Sabine Hossenfelder"},"uri":{"$t":"http:\/\/www.blogger.com\/profile\/06151209308084588985"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"generator":{"version":"7.00","uri":"http://www.blogger.com","$t":"Blogger"},"openSearch$totalResults":{"$t":"73294"},"openSearch$startIndex":{"$t":"1"},"openSearch$itemsPerPage":{"$t":"25"},"entry":[{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8917428770077353853"},"published":{"$t":"2020-11-18T12:09:36.524-05:00"},"updated":{"$t":"2020-11-18T12:09:36.524-05:00"},"title":{"type":"text","$t":"Sabine, just and simply thanks (again) for the bea..."},"summary":{"type":"text","$t":"Sabine, just and simply thanks (again) for the beautiful and clear explanation."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/8917428770077353853"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/8917428770077353853"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html?showComment=1605719376524#c8917428770077353853","title":""}],"author":[{"name":{"$t":"Heiko242"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/10184484365353086444"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html","ref":"tag:blogger.com,1999:blog-22973357.post-6436412105688410148","source":"http://www.blogger.com/feeds/22973357/posts/default/6436412105688410148","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1837985038"},{"name":"blogger.displayTime","value":"12:09 PM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-9047166819461402439"},"published":{"$t":"2020-11-18T11:18:31.692-05:00"},"updated":{"$t":"2020-11-18T11:18:31.692-05:00"},"title":{"type":"text","$t":"That\u0026#39;s just a feature of quantum mechanics, an..."},"summary":{"type":"text","$t":"That\u0026#39;s just a feature of quantum mechanics, and that happens to be an *extremely* well confirmed theory. I don\u0026#39;t know what you want me to elaborate on. No, this does not put quantum mechanics in conflict with the second law of thermodynamics. The second law of thermodynamics is an approximate, average description. It is not fundamental. The fundamental theory, quantum mechanics, is "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/9047166819461402439"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/9047166819461402439"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html?showComment=1605716311692#c9047166819461402439","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/1673943499327304860"}],"author":[{"name":{"$t":"Sabine Hossenfelder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/06151209308084588985"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html","ref":"tag:blogger.com,1999:blog-22973357.post-6436412105688410148","source":"http://www.blogger.com/feeds/22973357/posts/default/6436412105688410148","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-2049897073"},{"name":"blogger.displayTime","value":"11:18 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-1673943499327304860"},"published":{"$t":"2020-11-18T11:11:23.723-05:00"},"updated":{"$t":"2020-11-18T11:11:23.723-05:00"},"title":{"type":"text","$t":"Sabine, can you please elaborate on your statement..."},"summary":{"type":"text","$t":"Sabine, can you please elaborate on your statement \u0026quot;All these processes are for all practical purposes irreversible. But according to quantum theory, they are not fundamentally irreversible, which means a particular initial state will give you one, and only one, final state.\u0026quot;  Why and how does quantum mechanics allow reversibility?  And does this not already put quantum mechanics into "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/1673943499327304860"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/1673943499327304860"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html?showComment=1605715883723#c1673943499327304860","title":""}],"author":[{"name":{"$t":"Jay R. Yablon"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/06940315508866841307"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"32","src":"\/\/3.bp.blogspot.com\/-eRS_TBFAtjc\/XWHxtqYx-ZI\/AAAAAAAAAI0\/2-FNDN0fG2YfGo2Uiq1EWJbYE2ONbMyJwCK4BGAYYCw\/s102\/JRYablon.jpg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html","ref":"tag:blogger.com,1999:blog-22973357.post-6436412105688410148","source":"http://www.blogger.com/feeds/22973357/posts/default/6436412105688410148","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-800324269"},{"name":"blogger.displayTime","value":"11:11 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-1083857186049218620"},"published":{"$t":"2020-11-18T10:49:11.358-05:00"},"updated":{"$t":"2020-11-18T10:49:11.358-05:00"},"title":{"type":"text","$t":"Right to the point, Sabine.\n\nTo quote Einstein: \n\n..."},"summary":{"type":"text","$t":"Right to the point, Sabine.\u003Cbr \/\u003E\u003Cbr \/\u003ETo quote Einstein: \u003Cbr \/\u003E\u003Cbr \/\u003E“As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality\u0026quot;"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/1083857186049218620"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6436412105688410148\/comments\/default\/1083857186049218620"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html?showComment=1605714551358#c1083857186049218620","title":""}],"author":[{"name":{"$t":"Ervin Goldfain"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/07585008304556273617"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"24","src":"\/\/3.bp.blogspot.com\/-NwMEwEikL0w\/UwOoSL-plJI\/AAAAAAAAANU\/CPJAnTD83w4\/s113\/*"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/the-black-hole-information-loss-problem.html","ref":"tag:blogger.com,1999:blog-22973357.post-6436412105688410148","source":"http://www.blogger.com/feeds/22973357/posts/default/6436412105688410148","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-289541678"},{"name":"blogger.displayTime","value":"10:49 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-6185848413782319969"},"published":{"$t":"2020-11-18T10:18:29.254-05:00"},"updated":{"$t":"2020-11-18T10:18:29.254-05:00"},"title":{"type":"text","$t":"Commonly tunnel effects are noticeable through dim..."},"summary":{"type":"text","$t":"Commonly tunnel effects are noticeable through diminishing hustle and bustle."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6185848413782319969"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6185848413782319969"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605712709254#c6185848413782319969","title":""}],"author":[{"name":{"$t":"marten"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/02423871089614417690"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1336984670"},{"name":"blogger.displayTime","value":"10:18 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-5385164708500018662"},"published":{"$t":"2020-11-18T08:56:10.083-05:00"},"updated":{"$t":"2020-11-18T08:56:10.083-05:00"},"title":{"type":"text","$t":"Well, sort of, but the formal mathematics of categ..."},"summary":{"type":"text","$t":"Well, sort of, but the formal mathematics of category theory and Etale \u0026amp; Grothendieke cohomology etc are not necessary for showing this These may serve to formalize theory later on in development. Physics is such that one can understand some basic kernel of things without highly advanced mathematics. "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/5385164708500018662"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/5385164708500018662"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2019\/05\/quantum-mechanics-is-wrong-there-ive.html?showComment=1605707770083#c5385164708500018662","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/7875501695576133135"}],"author":[{"name":{"$t":"Lawrence Crowell"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/12090839464038445335"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"32","src":"\/\/3.bp.blogspot.com\/-BWmgdg5Q6ls\/XKP32Tf0b2I\/AAAAAAAADnI\/D_PljJkdYPcDUXbnNtgHYFINGkXVm2GjgCK4BGAYYCw\/s220\/aname%2Bme.PNG"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2019\/05\/quantum-mechanics-is-wrong-there-ive.html","ref":"tag:blogger.com,1999:blog-22973357.post-3487687659001387744","source":"http://www.blogger.com/feeds/22973357/posts/default/3487687659001387744","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-413232621"},{"name":"blogger.displayTime","value":"8:56 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-7694049141334984898"},"published":{"$t":"2020-11-18T08:17:05.506-05:00"},"updated":{"$t":"2020-11-18T08:17:05.506-05:00"},"title":{"type":"text","$t":"Hmm. As a mathematician I must find fault with you..."},"summary":{"type":"text","$t":"Hmm. As a mathematician I must find fault with your reasoning. Quantum mechanics is not an approximation, but simply a reduced subset of a larger class of theories that are interchangeable. Category theory will in the end provide an elegant solution in terms of combining all theoretical fields involved."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/7694049141334984898"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/7694049141334984898"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2019\/05\/quantum-mechanics-is-wrong-there-ive.html?showComment=1605705425506#c7694049141334984898","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/3487687659001387744\/comments\/default\/7875501695576133135"}],"author":[{"name":{"$t":"PrajnaFormalMath"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/16843360721463798932"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2019\/05\/quantum-mechanics-is-wrong-there-ive.html","ref":"tag:blogger.com,1999:blog-22973357.post-3487687659001387744","source":"http://www.blogger.com/feeds/22973357/posts/default/3487687659001387744","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-149997193"},{"name":"blogger.displayTime","value":"8:17 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-7691719408024282786"},"published":{"$t":"2020-11-18T07:05:27.812-05:00"},"updated":{"$t":"2020-11-18T07:05:27.812-05:00"},"title":{"type":"text","$t":"I have to wonder what happens to the portion of th..."},"summary":{"type":"text","$t":"I have to wonder what happens to the portion of the wavefuction that was associated with the tunneled particle, but is reflected at the barrier and doesn’t continue with the particle?  This, I imagine, impinges on the old debate whether the wavefunction is something real, or is just knowledge of the observer.  My understanding is that the Copenhagen interpretation would fit in the latter category"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/7691719408024282786"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/7691719408024282786"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605701127812#c7691719408024282786","title":""}],"author":[{"name":{"$t":"David Schroeder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/18048116250413347228"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"26","height":"32","src":"\/\/4.bp.blogspot.com\/-V-2wT4LinGk\/Xm16YveC9OI\/AAAAAAAAAMY\/REHoAk_JcKU9UIvuIFaHYLhWcR2JyXFwACK4BGAYYCw\/s220\/dave1201.jpg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1650795495"},{"name":"blogger.displayTime","value":"7:05 AM, November 18, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-85424185133276027"},"published":{"$t":"2020-11-17T12:40:06.641-05:00"},"updated":{"$t":"2020-11-17T12:40:06.641-05:00"},"title":{"type":"text","$t":"The tunnel effect can also be understood by the pa..."},"summary":{"type":"text","$t":"The tunnel effect can also be understood by the particle model of Louis de Broglie; which means in a more classical way which is helpful for imagination and avoids much of the weirdness of QM.\u003Cbr \/\u003E\u003Cbr \/\u003EA potential wall in this context is realized by a field which repels the charges of the particle trying to pass. These field forces build the potential wall which the particle has to pass. This "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/85424185133276027"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/85424185133276027"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605634806641#c85424185133276027","title":""}],"author":[{"name":{"$t":"antooneo"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/12559038212417783694"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-862933049"},{"name":"blogger.displayTime","value":"12:40 PM, November 17, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-6680646138171083461"},"published":{"$t":"2020-11-17T08:14:27.710-05:00"},"updated":{"$t":"2020-11-17T08:14:27.710-05:00"},"title":{"type":"text","$t":"John,\n\nThe potential of the barrier is an average ..."},"summary":{"type":"text","$t":"John,\u003Cbr \/\u003E\u003Cbr \/\u003EThe potential of the barrier is an average one. You do not actually know what was the potential at the exact time and place the particle was there. It might be the case it was low enough so that no violation of energy conservation is required."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6680646138171083461"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6680646138171083461"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605618867710#c6680646138171083461","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/2926916025764251289"}],"author":[{"name":{"$t":"Andrei"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/05519448415253342448"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-2002311285"},{"name":"blogger.displayTime","value":"8:14 AM, November 17, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-3485061128056881986"},"published":{"$t":"2020-11-16T16:40:43.698-05:00"},"updated":{"$t":"2020-11-16T16:40:43.698-05:00"},"title":{"type":"text","$t":"That\u0026#39;s facetious. Thoughts are instantiated in..."},"summary":{"type":"text","$t":"That\u0026#39;s facetious. Thoughts are instantiated in action; kinetic energy. Did your fingers type out your reply without engaging your mind? Actually maybe they did.\u003Cbr \/\u003E\u003Cbr \/\u003EAlso, disregard my uninformed opinion by all means but Planck and Schrodinger?"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/8764457824930566447\/comments\/default\/3485061128056881986"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/8764457824930566447\/comments\/default\/3485061128056881986"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/10\/what-is-energy-is-energy-conserved.html?showComment=1605562843698#c3485061128056881986","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/8764457824930566447\/comments\/default\/243913169973210083"}],"author":[{"name":{"$t":"Lak"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/02749552510133856277"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/10\/what-is-energy-is-energy-conserved.html","ref":"tag:blogger.com,1999:blog-22973357.post-8764457824930566447","source":"http://www.blogger.com/feeds/22973357/posts/default/8764457824930566447","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1872348759"},{"name":"blogger.displayTime","value":"4:40 PM, November 16, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-195624796019707911"},"published":{"$t":"2020-11-16T13:15:19.625-05:00"},"updated":{"$t":"2020-11-16T13:15:19.625-05:00"},"title":{"type":"text","$t":"Referring to the last part of your video, I notice..."},"summary":{"type":"text","$t":"Referring to the last part of your video, I noticed how the 2007 conjectures of Günter Nimtz - the superluminal tunneling of information and the violation of Special Relativity - can be debunked with a single stroke. kudos!"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/195624796019707911"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/195624796019707911"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605550519625#c195624796019707911","title":""}],"author":[{"name":{"$t":"rhkail"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/08396062602672163235"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-714540251"},{"name":"blogger.displayTime","value":"1:15 PM, November 16, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-3529458960187263523"},"published":{"$t":"2020-11-16T11:17:36.970-05:00"},"updated":{"$t":"2020-11-16T11:17:36.970-05:00"},"title":{"type":"text","$t":"Terry Bollinger: Wow, thanks, that is enlightening..."},"summary":{"type":"text","$t":"Terry Bollinger: Wow, thanks, that is enlightening.\u003Cbr \/\u003E\u003Cbr \/\u003EIf all that happened is the barrier introduced some skew in a non-infinite distribution and the leading edges are still the same, then I still see no reason for FTL angst. I\u0026#39;d expect the barrier to change the distribution somehow.\u003Cbr \/\u003E\u003Cbr \/\u003EI suppose there is some mystery, which might be resolved just by the math, as to why the "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/3529458960187263523"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/3529458960187263523"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605543456970#c3529458960187263523","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5089105104126257682"}],"author":[{"name":{"$t":"Dr. A.M. Castaldo"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/17988116835722393503"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1803392052"},{"name":"blogger.displayTime","value":"11:17 AM, November 16, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-388073495191755386"},"published":{"$t":"2020-11-16T08:54:16.432-05:00"},"updated":{"$t":"2020-11-16T08:54:16.432-05:00"},"title":{"type":"text","$t":"As someone with an understanding of physics limite..."},"summary":{"type":"text","$t":"As someone with an understanding of physics limited by not having the math involved, I still found this to be a very clarifying description of tunneling. Thanks, Dr. Hossenfelder!"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/388073495191755386"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/388073495191755386"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605534856432#c388073495191755386","title":""}],"author":[{"name":{"$t":"Friar"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/16907204457371629428"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1464297406"},{"name":"blogger.displayTime","value":"8:54 AM, November 16, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8400126222649549002"},"published":{"$t":"2020-11-16T04:27:49.872-05:00"},"updated":{"$t":"2020-11-16T04:27:49.872-05:00"},"title":{"type":"text","$t":"Mathematically, Schrödinger\u0026#39;s equation is akin..."},"summary":{"type":"text","$t":"Mathematically, Schrödinger\u0026#39;s equation is akin to a diffusion equation, and inaccurate in the context discussed here.  A relativistic equation (Klein-Gordon or Dirac) should be used.  The solutions could then actually have sharp edges instead of long tail precursors.\u003Cbr \/\u003E\u003Cbr \/\u003EIncidentally, the tunnel effect in the case of photons is adequately described by classical optics (\u0026quot;evanescent"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8400126222649549002"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8400126222649549002"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605518869872#c8400126222649549002","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8202759911699827579"}],"author":[{"name":{"$t":"Werner"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/08502954437062856468"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-638018386"},{"name":"blogger.displayTime","value":"4:27 AM, November 16, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-5479044632110413941"},"published":{"$t":"2020-11-15T17:14:21.775-05:00"},"updated":{"$t":"2020-11-15T17:14:21.775-05:00"},"title":{"type":"text","$t":"\u0026gt;… How is a rubidium atom \u0026quot;classically vis..."},"summary":{"type":"text","$t":"\u0026gt;… How is a rubidium atom \u0026quot;classically visible\u0026quot;, and even if it were, isn\u0026#39;t that measuring its position and therefore invalidating the experiment?\u003Cbr \/\u003E\u003Cbr \/\u003EIt’s classically visible because it’s \u003Ci\u003Einside\u003C\/i\u003E the apparatus. It’s hard to play with rubidium atoms that aren’t there! The game in experiments like this is that you let the location of the rubidium atom wave function "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5479044632110413941"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5479044632110413941"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605478461775#c5479044632110413941","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5089105104126257682"}],"author":[{"name":{"$t":"Terry Bollinger"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/03915136249111338024"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"32","src":"\/\/2.bp.blogspot.com\/-NVDGwOfK-eQ\/XVobwoK_m9I\/AAAAAAAAJoM\/BuROOaPqyJ0iCl99RNYRqmXYz5DxALneQCK4BGAYYCw\/s220\/2019-06-08%2B-%2BTerry%2BBollinger.jpeg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-666205460"},{"name":"blogger.displayTime","value":"5:14 PM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-2362323435582283691"},"published":{"$t":"2020-11-15T17:06:21.126-05:00"},"updated":{"$t":"2020-11-15T17:06:21.126-05:00"},"title":{"type":"text","$t":"Hi Dr A.M., nice to hear from you and I hope you a..."},"summary":{"type":"text","$t":"Hi Dr A.M., nice to hear from you and I hope you are well!\u003Cbr \/\u003E\u003Cbr \/\u003EAn answer in two parts:\u003Cbr \/\u003E\u003Cbr \/\u003E\u0026gt;… I thought the wave packet of a particle with indefinite position, as shown in the video, was a distribution with infinite tails.\u003Cbr \/\u003E\u003Cbr \/\u003ENo. To be precise, such wave functions cannot even exist in the real universe. That’s because they would require infinite time and space to form "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/2362323435582283691"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/2362323435582283691"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605477981126#c2362323435582283691","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5089105104126257682"}],"author":[{"name":{"$t":"Terry Bollinger"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/03915136249111338024"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"32","src":"\/\/2.bp.blogspot.com\/-NVDGwOfK-eQ\/XVobwoK_m9I\/AAAAAAAAJoM\/BuROOaPqyJ0iCl99RNYRqmXYz5DxALneQCK4BGAYYCw\/s220\/2019-06-08%2B-%2BTerry%2BBollinger.jpeg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-666205460"},{"name":"blogger.displayTime","value":"5:06 PM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-1433572940575461805"},"published":{"$t":"2020-11-15T12:22:14.196-05:00"},"updated":{"$t":"2020-11-15T12:22:14.196-05:00"},"title":{"type":"text","$t":"“Thus in the scenario of \u0026quot;blasting tons of pa..."},"summary":{"type":"text","$t":"“Thus in the scenario of \u0026quot;blasting tons of particles\u0026quot;, I could theoretically associate different atomic elements with different answers, blast a ton of a particular kind of atom at the barrier, some which traverse it superluminally, and the receiver knows the intended message based upon the kind of atom received.”\u003Cbr \/\u003E\u003Cbr \/\u003E“That message could reasonably consist of 3 or 4 bits of "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/1433572940575461805"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/1433572940575461805"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605460934196#c1433572940575461805","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5089105104126257682"}],"author":[{"name":{"$t":"David Schroeder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/18048116250413347228"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"26","height":"32","src":"\/\/4.bp.blogspot.com\/-V-2wT4LinGk\/Xm16YveC9OI\/AAAAAAAAAMY\/REHoAk_JcKU9UIvuIFaHYLhWcR2JyXFwACK4BGAYYCw\/s220\/dave1201.jpg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1650795495"},{"name":"blogger.displayTime","value":"12:22 PM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8940647513362616797"},"published":{"$t":"2020-11-15T11:36:50.391-05:00"},"updated":{"$t":"2020-11-15T11:36:50.391-05:00"},"title":{"type":"text","$t":"Sabine, thanks, I didn\u0026#39;t make that connection...."},"summary":{"type":"text","$t":"Sabine, thanks, I didn\u0026#39;t make that connection."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8940647513362616797"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8940647513362616797"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605458210391#c8940647513362616797","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8016050316381899108"}],"author":[{"name":{"$t":"David Schroeder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/18048116250413347228"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"26","height":"32","src":"\/\/4.bp.blogspot.com\/-V-2wT4LinGk\/Xm16YveC9OI\/AAAAAAAAAMY\/REHoAk_JcKU9UIvuIFaHYLhWcR2JyXFwACK4BGAYYCw\/s220\/dave1201.jpg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1650795495"},{"name":"blogger.displayTime","value":"11:36 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8202759911699827579"},"published":{"$t":"2020-11-15T10:46:35.603-05:00"},"updated":{"$t":"2020-11-15T10:46:35.603-05:00"},"title":{"type":"text","$t":"lagunastreets: Statistically speaking, if you boun..."},"summary":{"type":"text","$t":"lagunastreets: Statistically speaking, if you bound an infinite tail of a distribution at some point X, the volume of probabilities in the excluded region (beyond X) must be somehow incorporated back into the acceptable, realizable portion of the distribution.\u003Cbr \/\u003E\u003Cbr \/\u003EWhich may not be much, admittedly, but would still suggest the Schrödinger equation is not accurately capturing the "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8202759911699827579"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8202759911699827579"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605455195603#c8202759911699827579","title":""}],"author":[{"name":{"$t":"Dr. A.M. Castaldo"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/17988116835722393503"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1803392052"},{"name":"blogger.displayTime","value":"10:46 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-6308079993477116926"},"published":{"$t":"2020-11-15T10:22:40.098-05:00"},"updated":{"$t":"2020-11-15T10:22:40.098-05:00"},"title":{"type":"text","$t":"Terry Bollinger: Not a physicist here; but I thoug..."},"summary":{"type":"text","$t":"Terry Bollinger: Not a physicist here; but I thought the wave packet of a particle with indefinite position, as shown in the video, was a distribution with infinite tails.\u003Cbr \/\u003E\u003Cbr \/\u003EHow is a rubidium atom \u0026quot;classically visible\u0026quot;, and even if it were, isn\u0026#39;t that measuring its position and therefore invalidating the experiment? "},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6308079993477116926"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/6308079993477116926"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605453760098#c6308079993477116926","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/5089105104126257682"}],"author":[{"name":{"$t":"Dr. A.M. Castaldo"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/17988116835722393503"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1803392052"},{"name":"blogger.displayTime","value":"10:22 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8033013482192002967"},"published":{"$t":"2020-11-15T09:56:47.259-05:00"},"updated":{"$t":"2020-11-15T09:56:47.259-05:00"},"title":{"type":"text","$t":"The atoms don\u0026#39;t move with the speed of light. ..."},"summary":{"type":"text","$t":"The atoms don\u0026#39;t move with the speed of light. The next sentence explains it."},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8033013482192002967"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8033013482192002967"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605452207259#c8033013482192002967","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8016050316381899108"}],"author":[{"name":{"$t":"Sabine Hossenfelder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/06151209308084588985"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-2049897073"},{"name":"blogger.displayTime","value":"9:56 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-8016050316381899108"},"published":{"$t":"2020-11-15T09:09:35.491-05:00"},"updated":{"$t":"2020-11-15T09:09:35.491-05:00"},"title":{"type":"text","$t":"There must be a typo error in the Quanta magazine ..."},"summary":{"type":"text","$t":"There must be a typo error in the Quanta magazine article that Sabine referenced.  It states: “The researchers reported that the rubidium atoms spent, on average, 0.61 milliseconds inside the barrier, in line with Larmor clock times theoretically predicted in the 1980s. That’s less time than the atoms would have taken to travel through free space.”  In .61 milliseconds a light beam, in free space"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8016050316381899108"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/8016050316381899108"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605449375491#c8016050316381899108","title":""}],"author":[{"name":{"$t":"David Schroeder"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/18048116250413347228"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"26","height":"32","src":"\/\/4.bp.blogspot.com\/-V-2wT4LinGk\/Xm16YveC9OI\/AAAAAAAAAMY\/REHoAk_JcKU9UIvuIFaHYLhWcR2JyXFwACK4BGAYYCw\/s220\/dave1201.jpg"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-1650795495"},{"name":"blogger.displayTime","value":"9:09 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-3136997272553490606"},"published":{"$t":"2020-11-15T06:39:21.490-05:00"},"updated":{"$t":"2020-11-15T06:39:21.490-05:00"},"title":{"type":"text","$t":"I am familiar with this. My ancient memory on this..."},"summary":{"type":"text","$t":"I am familiar with this. My ancient memory on this was jogged a while back with news of experimental data on this. I will say that I do not think this determines the speed information crosses a barrier. The Hartman effect is the time for phase velocity to cross or the phase time.\u003Cbr \/\u003E\u003Cbr \/\u003EI suggested above this time is related to a pseudo-temperature determined by statistics on hidden variables"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/3136997272553490606"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/3136997272553490606"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605440361490#c3136997272553490606","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/3034497233860950592"}],"author":[{"name":{"$t":"Lawrence Crowell"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/12090839464038445335"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"32","height":"32","src":"\/\/3.bp.blogspot.com\/-BWmgdg5Q6ls\/XKP32Tf0b2I\/AAAAAAAADnI\/D_PljJkdYPcDUXbnNtgHYFINGkXVm2GjgCK4BGAYYCw\/s220\/aname%2Bme.PNG"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-413232621"},{"name":"blogger.displayTime","value":"6:39 AM, November 15, 2020"}]},{"id":{"$t":"tag:blogger.com,1999:blog-22973357.post-438061594367791514"},"published":{"$t":"2020-11-15T00:32:44.362-05:00"},"updated":{"$t":"2020-11-15T00:32:44.362-05:00"},"title":{"type":"text","$t":"It is interesting to consider that any type of wav..."},"summary":{"type":"text","$t":"It is interesting to consider that any type of wave can tunnel even sound waves. Both Yang and Robertson have shown that acoustic waves can tunnel They found that inside the stop band the acoustic group delay was relatively insensitive to the length of the structure, a verification of the Hartman effect. Furthermore the group velocity increased with length and was greater than the speed of sound,"},"link":[{"rel":"edit","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/438061594367791514"},{"rel":"self","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/438061594367791514"},{"rel":"alternate","type":"text/html","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html?showComment=1605418364362#c438061594367791514","title":""},{"rel":"related","type":"application/atom+xml","href":"http:\/\/www.blogger.com\/feeds\/22973357\/6731187369418702169\/comments\/default\/2926916025764251289"}],"author":[{"name":{"$t":"Axil"},"uri":{"$t":"https:\/\/www.blogger.com\/profile\/07190120527431077518"},"email":{"$t":"noreply@blogger.com"},"gd$image":{"rel":"http://schemas.google.com/g/2005#thumbnail","width":"16","height":"16","src":"https:\/\/img1.blogblog.com\/img\/b16-rounded.gif"}}],"thr$in-reply-to":{"xmlns$thr":"http://purl.org/syndication/thread/1.0","href":"http:\/\/backreaction.blogspot.com\/2020\/11\/understanding-quantum-mechanics-8.html","ref":"tag:blogger.com,1999:blog-22973357.post-6731187369418702169","source":"http://www.blogger.com/feeds/22973357/posts/default/6731187369418702169","type":"text/html"},"gd$extendedProperty":[{"name":"blogger.itemClass","value":"pid-833225974"},{"name":"blogger.displayTime","value":"12:32 AM, November 15, 2020"}]}]}});