Deconstructing de Sitter

Creators: Balasubramanian, Vijay; Hořava, Petr; Minic, Djordje

Abstract

Semiclassical gravity predicts that de Sitter space has a finite entropy. We suggest a picture for Euclidean de Sitter space in string theory, and use the AdS/CFT correspondence to argue that de Sitter entropy can be understood as the number of degrees of freedom in a quantum mechanical dual.

Additional Information

© 2001 IOP Publishing. Received 13 April 2001, accepted for publication 22 May 2001. Published 4 June 2001. We have benefitted from conversations with many colleagues including Tom Banks, Jan de Boer, Raphael Bousso, Sean Carroll, Robbert Dijkgraaf, Willy Fischler, Rajesh Gopakumar, Aki Hashimoto, Chris Hull, Sunny Itzhaki, Antal Jevicki, Igor Klebanov, Amanda Peet, Arvind Rajaraman, Lenny Susskind, Herman Verlinde, and Edward Witten. We thank Chris Hull for useful comments on this manuscript. V.B., P.H., and D.M. are supported respectively by the DOE grants DE-FG02-95ER40893, DE-FG02-96ER40959, and DE-FG03-84ER40168. In final stages of this work we enjoyed the hospitality of the ITP, Santa Barbara, and were supported by NSF grant PHY99-07949. The results in this paper were presented by one of us (P.H.) at "Strings 2001", in Mumbai, India. We are grateful to the organizers for a stimulating conference.

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