Quantum field theory
76. Chaos in quantum field theory
Clearly, the topic of interplay between confinement and chaos in classical YM got some interest, so let me continue. (…)
75. Chaos in YM and confinement
I think we are currently having a somewhat fruitful discussion with Marco Frasca on his blog. (…)
74. Nima and CDF anomaly
The post is deleted.
71. More talks: M2 branes and AdS/CFT, correlations of low multipoles in CMB
Here is another couple of recent talk at Perimeter Institute worth if not watching, but at least going through the presentation file:
1. (…)
69. Happy Halloween!
Since it is Halloween, today’s story is about ghosts…
Let us follow the analysis of massive gravity theory in de Sitter background by Izumi and Tanaka. (…)
66. Some interesting talks worth watching
Steve Carlip talks about topologically massive gravity at Perimeter, namely, about 3d topologically massive gravity in AdS and finds that it is unstable (even for chiral values Strominger mentioned at Strings 08). (…)
59. Eye on Arxiv: Quantum corrections to eta/s
I decided to turn the de Sitter discussion off for a moment, it would be more appropriate to return to it after the paper is ready anyway Hopefully, it will not take too much time for you to see it in ArXives. (…)
58. Stability of de Sitter space: dS as a perfect interferometer
Let us now show that QFT of a massive scalar field in de Sitter space features instabilities if the number of dimensions is odd. (…)
57. Stability of de Sitter space: statement of the problem 1
Ok, friends, I feel that the time has come to let you know about things I am currently involved in – namely, understanding of intrinsic stability of the de Sitter space. (…)
54. Eternal inflation: stochastic approach 2 (Inflationary perturbations 7)
In the previous post we have started to discuss the regime of eternal inflation realized when classical displacement of the inflaton field becomes comparable with the average amplitude of fluctuations generated at super-Hubble scale. (…)
53. Eternal inflation: stochastic approach 1 (Inflationary perturbations 7)
In this post I start to discuss physics of eternal inflation - regime where superhorizon cosmological perturbations become of the order 1.
52. Introduction to non-gaussianities (Inflationary perturbations 6)
This post is the next in the series devoted to study of inflationary perturbations. I discuss the physics of non-gaussianities at the introductionary level, explain the shape of non-gaussianities and estimate their order for a single-field inflationary model.
51. Planck 2008: day 4 - Soft wall AdS/QCD
I discuss the soft wall AdS/QCD model introduced by Batell&Gherghetta, where AdS gravity and dilaton behavior providing soft wall cutoff is introduced self-consistently.
50. Planck 2008: day 4
4th day of the Planck 2008 was devoted to unparticle physics (feat. Howard Georgi himself) and AdS/QCD.
48. Planck 2008: day 3
The third day of Planck 2008 was devoted to experimental side of LHC, physics of hidden sectors, quirks and N=1 SQCD.
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