tag:blogger.com,1999:blog-2846514233477399562.post6711580918869836657..comments2024-01-08T09:37:04.406+01:00Comments on RÉSONAANCES: Farewell to the Noughties - TheoryJesterhttp://www.blogger.com/profile/08947218566941608850noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-2846514233477399562.post-7184562461781739392010-04-11T06:31:52.259+01:002010-04-11T06:31:52.259+01:00Remember that this list is "...subjective, bi...Remember that this list is "...subjective, biased, and utterly unfair..." and "tendentious". Nevertheless, a few comments are in order: <br />i) Maldacena belongs to the nineties, <br />ii) KKLT, Horava-Lifshitz, or unparticles: no way. I'm surprised, though, that nobody complains about ISS... <br />iii) Unfortunately, I know nothing about non-equilibrium field theory to appreciate the progress there, <br />iv) By no means I wanted to depict DM experimentalists as narrow-minded. On the contrary, this is the field where the most amazing progress is happening right now. The (mostly past) domination of narrow theoretical ideas should be blamed on us theorists.Jesterhttps://www.blogger.com/profile/08947218566941608850noreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-4311227867030484782010-04-09T22:21:38.467+01:002010-04-09T22:21:38.467+01:00Jester,
Unfortunately, few people realize that du...Jester,<br /><br />Unfortunately, few people realize that during the last decade or so we became aware of how critically important non-equilibrium statistical physics is in strongly coupled field theory, inflationary cosmology and condensed matter phenomena. Non-equilibrium dynamics of quantum fields is a key player in electroweak baryogenesis, chiral phase transitions and quark-gluon plasma in heavy ion collisions, dynamics of phase transition in Bose-Einstein condensates, spin glasses, stochastic models of the dark sector, non-extensive statistics and complex dynamics in high-energy particle interactions.<br />It is also unfortunate, in my opinion, that there are too many theorists that continue to believe<br />in the myth of field unification via larger symmetry groups. While it is true that EW unification occurs at high energies, they keep forgetting that the same EW sector or physics beyond SM are responsible for broken symmetries in meson physics (P and CP violations). The same goes for the anomalous magnetic moment of leptons, the excess of positrons @ PAMELA and muons @ CDF and other deviations from SM that the LHC will likely uncover.<br /><br />Regards,<br /><br />ErvinErvin Goldfainhttps://www.blogger.com/profile/07585008304556273617noreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-5116408909982670372010-04-09T20:35:08.233+01:002010-04-09T20:35:08.233+01:00No need of job search committees, and all that. Af...No need of job search committees, and all that. After the citation summary, the h index, now the blogs. Fantastic !!! <br /><br />Did you read all the 100 000 papers or so written during the decade?<br /><br />You forgot for the noughties Maldacena instead of RS,in particular for QCD related stuff, the latter did not bring anything (but did for the hierarchy issue). You forgot that your holographic model of hadrons fails (no partons).<br /><br />Putting little Higgs at the level of SUSY is surprising too. A simple model for collective breaking, and a symmetry in nature between bosons and fermions have the same scientific implications???<br /><br />But I support you in forgetting KKLT, which generated (many of low quality) papers but did not solve neither the susy breaking issues, nor anything useful.<br /><br />You forgot instead, the unparticles (and their soft-wall cousins), the Horava-Lifshitz gravity which represent lead to the lowest level of theoretical physics papers ever written, where one studies phenomenology of theories before they build the theories themselves!<br /><br />The poor DM experimentalists are more and more depicted by theorists as stupid and narrow minded; They believed in the stupid WIMPs, and they releasing data that did not check seriously, just to make the buzz. Where are the GZK related papers?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-6564554069426993722010-04-06T11:26:41.965+01:002010-04-06T11:26:41.965+01:00To write this: "all models we have constructe...To write this: "all models we have constructed so far are just as good, or rather just as bad, as supersymmetry." right after talking about Little Higgs models is definite proof you do smoke illegal substances to write your posts. Could you share with us what you take exactly? Looks like worth a try!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-74472908642998828492010-04-05T17:32:53.754+01:002010-04-05T17:32:53.754+01:00Sucks to be pwned by condensed matter:
http://inc...Sucks to be pwned by condensed matter:<br /><br />http://incoherently-scattered.blogspot.com/2009/12/top-10-cm-topics-of-2000-2009.htmlAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-78609034977048108782010-04-05T16:37:08.696+01:002010-04-05T16:37:08.696+01:00Yes they have been looking for light dark matter b...Yes they have been looking for light dark matter but the sensitivity is much worse. The main reason is that most experiment use fairly heavy targets such as germanium or xenon. This is perfect for detecting 100 GeV dark matter particles, but what if dark matter is 1-5 GeV? Only recently people started thinking about direct detection experiments based on helium...thanks in part to theorists I believe.Jesterhttps://www.blogger.com/profile/08947218566941608850noreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-28656770515083919792010-04-05T05:02:46.329+01:002010-04-05T05:02:46.329+01:00Dark matter experiments have always looked for sig...Dark matter experiments have always looked for signals from low mass candidates. Inelastic models are really forced. Axions have always been searched for, as have near-strongly interacting candidates.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-49672687667061678672010-04-04T21:53:54.079+01:002010-04-04T21:53:54.079+01:00Hi there
I like your posts. Especially this one. ...Hi there<br /><br />I like your posts. Especially this one. You have a good way to summarize thing in a kinda laid back way and still keep the important stuff in focus.<br /><br />Keep it burning!<br /><br />PPernoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-57503969890011144582010-04-04T01:23:42.649+01:002010-04-04T01:23:42.649+01:00Lean years indeed, especially for particle phenome...Lean years indeed, especially for particle phenomenology (``formal theorists'' always seem to find ways to keep busy). By now most people realize that ADD and RS are grossly overrated, but papers citing this weird stuff continue pouring in. Can't wait for the LHC to unleash some real particle physics!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-81098193304989721262010-04-03T19:18:59.396+01:002010-04-03T19:18:59.396+01:00This is a very tendentious description, Jester.
I...This is a very tendentious description, Jester.<br /><br />In the noughties, we've seen BMN which is topcite 1000+, a very fine realization of string theory including exciting strings within field theory.<br /><br />And there has been the KKLT direction, mapping the apparent vastness of the landscape. We may dislike the conclusions but that can't change the fact that there's evidence that the multiplicity of solutions is real.<br /><br />At any rate, drought is how the decades will look like after "the theory of everything" is really understood - and we may not be that infinitely far from that. As Feynman said, it's clear that the same rate of progress can't last indefinitely. This was just clear a priori. It's preposterous to be "disappointed".<br /><br />Of course that people must be excited about the things that have already been found. It's just wrong to be making bets for "permanent new revolutions".<br /><br />With this said, I am convinced that the theoretical physicists are not yet finished with the big things but there's no guarantee by Nature that things have to be finished by 5 or 10 years.Luboš Motlhttps://www.blogger.com/profile/17487263983247488359noreply@blogger.com