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Inflation in AdS/CFT

Freivogel, Ben; Hubeny, Veronika E.; Maloney, Alexander; Myers, Robert C.; Rangamani, Mukund; Shenker, Stephen

Authors

Ben Freivogel

Veronika E. Hubeny

Alexander Maloney

Robert C. Myers

Mukund Rangamani

Stephen Shenker



Abstract

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.

Citation

Freivogel, B., Hubeny, V. E., Maloney, A., Myers, R. C., Rangamani, M., & Shenker, S. (2006). Inflation in AdS/CFT. Journal of High Energy Physics, 2006(03), https://doi.org/10.1088/1126-6708/2006/03/007

Journal Article Type Article
Publication Date Mar 2, 2006
Deposit Date Feb 22, 2008
Publicly Available Date Mar 29, 2024
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Electronic ISSN 1029-8479
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2006
Issue 03
DOI https://doi.org/10.1088/1126-6708/2006/03/007
Keywords AdS-CFT correspondence, dS vacua in string theory.

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