A NO-GO THEOREM FOR de SITTER COMPACTIFICATIONS?

Autor: N. D. Hari Dass
Rok vydání: 2002
Předmět:
Zdroj: Modern Physics Letters A. 17:1001-1011
ISSN: 1793-6632
0217-7323
DOI: 10.1142/s0217732302007557
Popis: A general framework for studying compactifications in supergravity and string theories was introduced by Candelas, Horowitz, Strominger and Witten. This was further generalised to take into account the warp factor by de Wit, Smit and Hari Dass. Though the prime focus of the latter was to find solutions with nontrivial warp factors (shown not to exist under a variety of circumstances), it was shown there that de Sitter compactifications are generically disfavoured. In this note we place these results in the context of a revived interest in de Sitter spacetimes .
Comment: 11 pages in LATEX. Contribution to the "First IUCAA meeting on the Interface of Gravitational and Quantum Realms", Pune, Dec 2001. To appear in Modern Physics Letters A
Databáze: OpenAIRE