Axion-Dilaton Domain Walls and Fake Supergravity
| dc.creator | Sonner, Julian | |
| dc.creator | Townsend, Paul K. | |
| dc.date | 2007-03-29 | |
| dc.date | 2007-05-07 | |
| dc.date.accessioned | 2026-07-07T10:38:16Z | |
| dc.date.available | 2026-07-07T10:38:16Z | |
| dc.description | Dynamical systems methods are used to investigate domain-wall solutions of a two-parameter family of models in which gravity is coupled to an axion, and to a dilaton with an exponential potential of either sign. A complete global analysis is presented for (i) constant axion and (ii) flat walls, including a study of bifurcations and a new exact domain-wall solution with non-constant axion. We reconsider `fake supergravity' issues in light of these results. We show, by example, how domain walls determine multi-valued superpotentials that branch at stationary points that are not stationary points of the potential, and we apply this result to potentials with anti-de Sitter vacua. We also show by example that `adapted' truncation to a single-scalar model is sometimes inconsistent, and we propose a `generalized' fake supergravity formalism that applies in some such cases. | |
| dc.description | 43pp, 19 figures; minor corrections and extensions; one additional figure | |
| dc.identifier | https://arxiv.org/abs/hep-th/0703276 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0703276 | |
| dc.identifier | Class.Quant.Grav.24:3479-3514,2007 | |
| dc.identifier | doi:10.1088/0264-9381/24/13/021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/180662 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Axion-Dilaton Domain Walls and Fake Supergravity | |
| dc.type | text |