Strings in a 2-d Extremal Black Hole
| dc.creator | Giveon, Amit | |
| dc.creator | Sever, Amit | |
| dc.date | 2004-12-24 | |
| dc.date | 2005-01-05 | |
| dc.date.accessioned | 2026-07-07T10:50:29Z | |
| dc.date.available | 2026-07-07T10:50:29Z | |
| dc.description | String theory on 2-d charged black holes corresponding to (SL(2)xU(1)_L)/U(1) exact asymmetric quotient CFTs are investigated. These backgrounds can be embedded, in particular, in a two dimensional heterotic string. In the extremal case, the quotient CFT description captures the near horizon physics, and is equivalent to strings in AdS_2 with a gauge field. Such string vacua possess an infinite space-time Virasoro symmetry, and hence enhancement of global space-time Lie symmetries to affine symmetries, in agreement with the conjectured AdS_2/CFT_1 correspondence. We argue that the entropy of these 2-d black holes in string theory is compatible with semi-classical results, and show that in perturbative computations part of an incoming flux is absorbed by the black hole. Moreover, on the way we find evidence that the 2-d heterotic string is closely related to the N=(2,1) string, and conjecture that they are dual. | |
| dc.description | 1+22 pages, harvmac, 1 eps figure; v2: refs. added, typo corrected | |
| dc.identifier | https://arxiv.org/abs/hep-th/0412294 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0412294 | |
| dc.identifier | JHEP0502:065,2005 | |
| dc.identifier | doi:10.1088/1126-6708/2005/02/065 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184549 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Strings in a 2-d Extremal Black Hole | |
| dc.type | text |