alpha'^2-corrections to extremal dyonic black holes in heterotic string theory

Simple item page
dc.creatorCvitan, Maro
dc.creatorPrester, Predrag Dominis
dc.creatorFicnar, Andrej
dc.date2007-10-20
dc.date2008-05-21
dc.date.accessioned2026-07-07T13:16:10Z
dc.date.available2026-07-07T13:16:10Z
dc.descriptionWe calculate alpha'^2-corrections to the entropy of the 5-dimensional 3-charge and the 4-dimensional 4-charge large extremal black holes using the low energy effective action of the heterotic string theory. In the 4-dimensional case, our results are in agreement with the microscopic statistical entropy both for the BPS and the non-BPS black holes. In the more interesting 5-dimensional case, where the direct microscopic stringy description is still unknown, our results for the BPS black holes are in agreement with the results obtained from the action supplemented with R^2-correction obtained by supersymmetric completion of the gravitational Chern-Simons term. This agreement does not extend to the non-BPS black holes, for which we propose a different expression for the entropy. We show that the new expression is supported by certain alpha'^3-order calculations, and by the arguments based on the AdS/CFT correspondence.
dc.description21 pages; v2: references added; v3: claims on contributions from alpha'^2 part of the action made precise and proved in new Appendix C, version published in JHEP
dc.identifierhttps://arxiv.org/abs/0710.3886
dc.identifierhttp://arxiv.org/abs/0710.3886
dc.identifierJHEP 0805:063,2008
dc.identifierdoi:10.1088/1126-6708/2008/05/063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230702
dc.subjectHigh Energy Physics - Theory
dc.titlealpha'^2-corrections to extremal dyonic black holes in heterotic string theory
dc.typetext

Files

Collections

arXiv