Supergravity, M theory and Cosmology
| dc.creator | Kallosh, Renata | |
| dc.date | 2002-05-30 | |
| dc.date.accessioned | 2026-07-07T04:13:37Z | |
| dc.date.available | 2026-07-07T04:13:37Z | |
| dc.description | We discuss some recent attempts to reconcile cosmology with supergravity and M/string theory. First of all, we point out that in extended supergravities the scalar masses are quantized in terms of the cosmological constant in de Sitter vacua: the eigenvalues of the Casimir operator 3 m^2/Λtake integer values. For the current value of the cosmological constant extended supergravities predict ultra light scalars with the mass of the order of Hubble constant, 10^{-33} eV. This may have interesting consequences for cosmology. Turning our attention to cosmological implications of M/string theory, we present a possibility to use string theory D-brane constructions to reproduce the main features of hybrid inflation. We stress an important role played by Fayet-Iliopoulos terms responsible for the positive contribution to the potentials and stabilization of moduli. | |
| dc.description | 24 pages, a talk at Stephen Hawking's 60th birthday conference, Cambridge University, Jan. 2002 | |
| dc.identifier | https://arxiv.org/abs/hep-th/0205315 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0205315 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/51327 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Supergravity, M theory and Cosmology | |
| dc.type | text |