tag:blogger.com,1999:blog-22973357.post8995189760844294190..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: A new proposal for a fifth force experimentSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger38125tag:blogger.com,1999:blog-22973357.post-67028667662595341902015-01-16T12:55:45.364-05:002015-01-16T12:55:45.364-05:00This puzzles me. I was taught that Einstein's ...This puzzles me. I was taught that Einstein's lambda term implies a universal expansion at every scale. Supposedly, there is an increasing distance between the sun and its nearest neighbor, the earth and the moon, and even from one end of a measuring stick to the other. This seemed to imply that electrons were closer to protons in old atoms or perhaps more distant, depending on how one Kaleberghttps://www.blogger.com/profile/05283840743310507878noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-65416621044708021862015-01-02T20:21:08.037-05:002015-01-02T20:21:08.037-05:00/* an atom beam is split in two, one half of it is.../* an atom beam is split in two, one half of it is subjected to some field, and then the beams are combined again */<br /><br />How they want to eliminate the dark energy/chameleon field in one beam?Zephirhttps://www.blogger.com/profile/06010623752049244967noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-82143784371105960412015-01-02T07:38:47.424-05:002015-01-02T07:38:47.424-05:00This looks like a very promising experiment for de...This looks like a very promising experiment for detecting the Chameleon field. From reading their paper, they expect to have a sensitivity of one millionth of a g, with systematic errors being only a thousandth of that. It will be fascinating to see what they find.David Schroederhttps://www.blogger.com/profile/18048116250413347228noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-81914343848922713252015-01-02T05:54:21.707-05:002015-01-02T05:54:21.707-05:00Hopefully it’s OK to toss in my own two cents on t...Hopefully it’s OK to toss in my own two cents on the nature of dark energy. It’s speculative, but here’s an idea that weaves a common thread between dark energy, the stability of atoms, and claims of tiny acceleration signals from superconductors. <br /><br />In hundreds of experimental runs, between 2003 and 2006, a group at the Austrian Research Center, led by Martin Tajmar, reported 100 to 277David Schroederhttps://www.blogger.com/profile/18048116250413347228noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-25051955062734876112015-01-02T05:45:58.572-05:002015-01-02T05:45:58.572-05:00Bee, sorry about violating the rules. I'll re...Bee, sorry about violating the rules. I'll repost the comment, minus the URL, after correcting a spelling error.David Schroederhttps://www.blogger.com/profile/18048116250413347228noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-42617936771450912222015-01-02T05:35:44.598-05:002015-01-02T05:35:44.598-05:00David: Please read our comment rules, no links for...David: Please read our comment rules, no links for the sake of self-promotion other than to published papers. You're welcome to repost your comment without the URL. <br /><br />Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-13158938221013896642015-01-01T14:54:40.887-05:002015-01-01T14:54:40.887-05:00David,
Electric, magnetic, space, time is a four ...David,<br /><br />Electric, magnetic, space, time is a four way deal. Particles if of the standard model could be seen as quantized with respect to a Higgs field where it could indeed be imagined a fifth force the four others seem continuously embedded within.<br />The unity of such forces on this primitive movable cleft of origins or residual imagined inflation's or minor traces of L. Edgar Ottohttps://www.blogger.com/profile/00525169618204198073noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-8679116447382076232015-01-01T13:53:42.650-05:002015-01-01T13:53:42.650-05:00The Solor Corona problem together with QGP are gro...The Solor Corona problem together with QGP are grounds through which axion understanding can and are being developed.PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-43800586711399817962015-01-01T06:00:05.689-05:002015-01-01T06:00:05.689-05:00I'm very happy to read these difficulties. It ...I'm very happy to read these difficulties. It means that a solution has still to be found and that can be found. nemohttps://www.blogger.com/profile/07365330980872106443noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-48920840323476017492015-01-01T05:58:06.939-05:002015-01-01T05:58:06.939-05:00This comment has been removed by the author.nemohttps://www.blogger.com/profile/07365330980872106443noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-82212884115284811662014-12-31T15:47:11.605-05:002014-12-31T15:47:11.605-05:00Uncle AI
The fire Burns brighter this side of the ...Uncle AI<br />The fire Burns brighter this side of the looking glass. Your proposed experiment and this one could both in theory work, but from Alice's view somewhere in passing thru and on the mirror, as far as observations even on either side the experiments cancell each other out. (But Don, measurement and the proper worked out math is still possible.)<br />Some have already connected L. Edgar Ottohttps://www.blogger.com/profile/00525169618204198073noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-25191113795516149632014-12-31T15:17:38.946-05:002014-12-31T15:17:38.946-05:00Eric,
I like your points, especially from a ling...Eric,<br /> I like your points, especially from a linguistic view.<br /> A periodic table of language has proven difficult to frame from a particular model.<br /> Even where we do not know what we do not know time (force like) moves linearly in directed increments.(unless time stops people age in our dreams. )<br /> So if we know we do not know something but cannot say what, is that not like L. Edgar Ottohttps://www.blogger.com/profile/00525169618204198073noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-49884073759614490702014-12-31T14:02:54.033-05:002014-12-31T14:02:54.033-05:00I don't believe it necessarily helps understan...I don't believe it necessarily helps understanding of physics to ask if dark energy between galaxies is a fifth force. In all of science there is a need for taxonomy, the naming of things. It is a shorthand to give reference to what you are talking about. But it does not give understanding of the underlying structure of things. Worse, people use taxonomy to convince themselves and others thatErichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-70318597631063447992014-12-31T13:09:45.174-05:002014-12-31T13:09:45.174-05:00I think this paper is a red herring myself. If you...I think this paper is a red herring myself. If you read the original material by Einstein I think you get a clear idea of what dark energy is. But I'm confident now that very few people have read the original material by Einstein. Particularly particle physicists. They come out with things that absolutely don't square with what Einstein said. Cosmologists too. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-23671698324892926392014-12-31T12:57:09.687-05:002014-12-31T12:57:09.687-05:00"Is it a good argument? That's a question..."Is it a good argument? That's a question of opinion. Honestly, I don't think so"<br /><br />I agree, Sabine. <br /><br />It's fun... Usually I'm never agree with people...<br /><br />:-Dnemohttps://www.blogger.com/profile/07365330980872106443noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-75711075776224239572014-12-31T11:49:27.694-05:002014-12-31T11:49:27.694-05:00Sorry Bee you can delete comments if not felt appr...<br /><br />Sorry Bee you can delete comments if not felt appropriate....the axion represents the fifth force to me and to suggest experiment using interferometer method seeks to identify minimum mass is to identify the signature......so you use that to manipulate observed dilation affects as an unseen force?<br /><i><a href="http://en.m.wikipedia.org/wiki/Photonic_molecule" rel="nofollow">PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-21488591810631508542014-12-31T11:23:03.274-05:002014-12-31T11:23:03.274-05:00From massless to mass means refractory gives matte...From massless to mass means refractory gives matter identification signature? Thinking, speed of light in vacuum converts axion to X-ray gamma ray and interaction with mass gives angular spin?<br /><br />Please feel free to correct.....layman speculating.PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-73262244323817510822014-12-31T11:11:18.720-05:002014-12-31T11:11:18.720-05:00X-ray and gamma ray would refract with matterX-ray and gamma ray would refract with matterPlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-91350230074529498952014-12-31T11:04:43.036-05:002014-12-31T11:04:43.036-05:00The conversion from an axion to X-ray through heli...The conversion from an axion to X-ray through helioscope would relinquish photon to be interchangeable from massless to mass?<br /><br />Speculating here.PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-16594539331935705132014-12-31T10:58:47.725-05:002014-12-31T10:58:47.725-05:00Frank Wilczek: I named them after a laundry deterg...<i>Frank Wilczek: I named them after a laundry detergent, since they clean up a long standing problem in theoretical physics.”</i><br /><br />Hi Sabine,<br /><br />Maybe cleaning up the questions with regard to a chameleon force would have a basis in understanding an issue in theoretical physics?<br /><br />Best,PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-84623044693802124372014-12-31T10:29:38.921-05:002014-12-31T10:29:38.921-05:00In M-theory, brane configurations begin in a tachy...In M-theory, brane configurations begin in a tachyonic phase and undergo tachyon condensation, leading to the creation of matter excitations and symmetry breaking (a Higgs mechanism). A cosmological model with tachyon contribution is thus quite natural from a brane perspective. See <a href="http://arxiv.org/abs/astro-ph/0212198" rel="nofollow">astro-ph/0212198</a>.Metatronhttps://www.blogger.com/profile/08396427736998362077noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-34770143147070181832014-12-31T01:53:01.853-05:002014-12-31T01:53:01.853-05:00JRPS: Yes, what you say is correct, but language d...JRPS: Yes, what you say is correct, but language doesn't follow definitions. Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-60698926076236054272014-12-31T01:51:09.549-05:002014-12-31T01:51:09.549-05:00Plato: Yeah, what about them?Plato: Yeah, what about them?Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-76527525008006720562014-12-31T01:50:53.348-05:002014-12-31T01:50:53.348-05:00kashyap,
Depends on the type of field. I'm no...kashyap,<br /><br />Depends on the type of field. I'm not an expert on different dark energy fields, there's a whole class of them all with slightly different time-dependence, and all with slightly wacky names like chameleon field, phantom field and quintessence and so on. They're looking for any time dependence in dark energy now, and if they find something this can be used to sort Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-2740700404666332622014-12-31T01:48:56.711-05:002014-12-31T01:48:56.711-05:00Phillip:
Is it a good argument? That's a ques...Phillip:<br /><br />Is it a good argument? That's a question of opinion. Honestly, I don't think so, but then people need to justify their work with something. A good argument is if such a dynamical field has a mechanism to also explain the observed value of the CC. And that is much easier to achieve with a dynamical field than with a fixed constant. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.com