Freivogel, B. and Hubeny, V. E. and Maloney, A. and Myers, R. C. and Rangamani, M. and Shenker, S. (2006) 'Inflation in AdS/CFT.', Journal of high energy physics., 2006 (03). 007.
We study the AdS/CFT correspondence as a probe of inflation. We assume the existence of a string landscape containing at least one stable AdS vacuum and a (nearby) metastable de Sitter state. Standard arguments imply that the bulk physics in the vicinity of the AdS minimum is described by a boundary CFT. We argue that large enough bubbles of the dS phase, including those able to inflate, are described by mixed states in the CFT. Inflating degrees of freedom are traced over and do not appear explicitly in the boundary description. They nevertheless leave a distinct imprint on the mixed state. Analytic continuation allows us, in principle, to recover a large amount of nonperturbatively defined information about the inflating regime. Our work also shows that no scattering process can create an inflating region, even by quantum tunneling, since a pure state can never evolve into a mixed state under unitary evolution.
|Keywords:||AdS-CFT correspondence, dS vacua in string theory.|
|Full text:||(NA) Not Applicable |
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|Publisher Web site:||http://dx.doi.org/10.1088/1126-6708/2006/03/007|
|Publisher statement:||© SISSA 2006. Published by IOP Publishing for SISSA. This is an author-created, un-copyedited version of an article accepted for publication in Journal of high energy physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1126-6708/2006/03/007.|
|Record Created:||22 Feb 2008|
|Last Modified:||17 Jun 2015 11:58|
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