The suggestion for the workshop came up during our discussion group on the phenomenology of quantum gravity, held at Perimeter Institute last winter. We wanted to bring people together who are working on this still young field; particle physicists with the kappa-Poincaré mafia, cosmologists with analogue modelers, and astrophysicists with space-time foamers. There is by now a wide variety of approaches examining different possible phenomenological effects. On the longer run, it should be possible to find out whether some of them can be understood as arising from the same concept, such that their applicability can be extended to cover a broader range of phenomenology. The meeting was quite successful in fostering the discussion about the relation between different models.
One of the main points was raised by Daniel Sudarsky while talking about the 'Shrtvomings of the Standard Lore' (a mentionable 3 sigma event of typos):
- "The QG arena is the natural place to put things you don't understand."
Well, I hope this conjecture doesn't apply for the next postdoc hires. But more seriously, a recurring question in the field is of course whether a model has actually something to do with quantizing gravity, or whether it is just some generally possible speculation for physics beyond the standard model:
John Moffat:"Why violate Lorentz invariance ?!"
Jens Niemeyer:"Oh, just because everybody does it?"
|My favorite among the talks was Steve Giddings', who gave a very nice introduction into high energy scattering processes and black hole formation. John Ellis talked about the prospects of testing quantum gravity, and a special event was the talk by Aaron Chou who reported on new results from the AUGER collaboration that confirm the GZK cutoff. Giovanni Amelino-Camelia brought us up to date with the progress in Deformed Special Relativity, and Matt Visser gave us good advises how to deal with our office mates:|
- "If you want to give your colleagues a heart attack, you talk about the
velocity of the sub-quantic aether."
It was a very lively and interactive meeting that run very smoothly thanks to D, K and A's help with the organization. The worst disaster being that a participant lost his dinner voucher.
All of the talks were recorded and can be found on the PI websites.