Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-12-24
JHEP0502:065,2005
Physics
High Energy Physics
High Energy Physics - Theory
1+22 pages, harvmac, 1 eps figure; v2: refs. added, typo corrected
Scientific paper
10.1088/1126-6708/2005/02/065
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.
Giveon Amit
Sever Amit
No associations
LandOfFree
Strings in a 2-d Extremal Black Hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Strings in a 2-d Extremal Black Hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strings in a 2-d Extremal Black Hole will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-581549