A NO-GO THEOREM FOR de SITTER COMPACTIFICATIONS?
Autor: | N. D. Hari Dass |
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Rok vydání: | 2002 |
Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics Warp drive Supergravity FOS: Physical sciences General Physics and Astronomy Astronomy and Astrophysics Context (language use) String (physics) Prime (order theory) High Energy Physics::Theory General Relativity and Quantum Cosmology Theoretical physics High Energy Physics - Theory (hep-th) De Sitter universe No-go theorem Variety (universal algebra) |
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 |
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