Nonthreshold D-brane bound states and black holes with nonzero entropy

• Tipo: Artigo em Revista Científica Internacional
• Data: 1997

Autores

Costa, MS (Autor) Outra; Cvetic, M (Autor) Outra

Revista

Título: Physical Review D: Particles and fields

Vol. 56

Páginas: 4834-4843

ISSN: 0556-2821

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 16 Citações

Scopus - 16 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-007-1ZS

DOI: 10.1103/physrevd.56.4834

Abstract (EN): We start with Bogomol'nyi-Prasad-Sommerfield-(BPS) saturated configurations of two (orthogonally) intersecting M-branes and use the electromagnetic duality or dimensional reduction along a boost, in order to obtain new p-brane bound states. In the first case the resulting configurations are interpreted as BPS-saturated nonthreshold bound states of intersecting p-branes, and in the second case as p-branes intersecting at angles and their duals. As a by-product we deduce the enhancement of supersymmetry as the angle approaches zero. We also comment on the D-brane theory describing these new bound states, and a connection between the angle and the world-volume gauge fields of the D-brane system. We use these configurations to find new embeddings of the four-and five-dimensional black holes with nonzero entropy, whose entropy now also depends on the angle and world-volume gauge fields. The corresponding D-brane configuration sheds light on the microscopic entropy of such black holes. [S0556-2821(97)04218-5]. PACS number(s): 04.50.+h, 04.20.Jb, 04.70.Bw, 11.25.Mj.

Idioma: Inglês

Tipo (Avaliação Docente): Científica