String theory

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. (…)

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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). (…)

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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. (…)

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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. (…)

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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.

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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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42. Recalling a couple of facts about 2D and 3D Ising models

I discuss free fermion representation for the 2D Ising model and mention how string theory can be related to the critica behavior of the 3D Ising model.

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35. Lectures on AdS/CFT by Maldacena

Lectures on AdS/CFT by Juan Maldacena

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34. Several questions about de Sitter

I ask several questions about Green’s functions on de Sitter

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29. Eye on ArXiv: 28 Apr 2008 - D3/D7 brane inflation

I would like to briefly discuss the paper
Michael Haack, Renata Kallosh, Axel Krause, Andrei Linde, Dieter Lust, Marco Zagermann, “Update of D3/D7-Brane Inflation on K3 x T^2/Z_2″
released last friday. (…)

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28. Eye on ArXiv: 24 Apr 2008 - dS vacua in no-scale SUGRA; multifield DBI inflation

Laura Covi et al., de Sitter vacua in no-scale supergravities and Calabi-Yau string models; D. Langlois et al., Primordial fluctuations and non-Gaussianities in multi-field DBI inflation

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26. Eye on ArXiv: 24 Apr 2008 - NSR superstring measures

Today I decided to split my review of new papers in archives which were of interest to me into separate posts. (…)

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25. Geometry and causal structure of de Sitter space (Inflationary perturbations 4)

I discuss geometry, causal structure and behavior of QFT Green functions in de Sitter space

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23. Eye on ArXiv: 21 Apr 2008 - SUSY/non-SUSY duality

And so the new week began… Would be fun to finish another paper till Friday (the subject is “IR divergencies in de Sitter space”). (…)

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22. About decoherence in quasi de Sitter space

My discussion of disorder on the landscape with Lubos continues (L - Lubos, D - me). (…)

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