Landau degeneracy and black hole entropy

• Tipo: Artigo em Revista Científica Internacional
• Data: 1998

Autores

Costa, MS (Autor) Outra; Perry, MJ (Autor) Outra

Revista

Título: Nuclear Physics B

Vol. 520

Páginas: 205-228

ISSN: 0550-3213

Editora: Elsevier

Indexação

ISI Web of Knowledge - 11 Citações

Scopus - 15 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-007-83P

DOI: 10.1016/s0550-3213(98)00051-0

Abstract (EN): We consider the supergravity solution describing a configuration of intersecting D4-branes with non-vanishing world-volume gauge fields. The entropy of such a black hole is calculated in terms of the D-branes quantised charges. The non-extreme solution is also considered and the corresponding thermodynamical quantities are calculated in terms of a D-brane/anti-D-brane system. To perform the quantum mechanical D-brane analysis we study open strings with their ends on branes with a magnetic condensate. Applying the results to our D-brane system we manage to have a perfect agreement between the D-brane entropy counting and the corresponding semi-classical result. The Landau degeneracy of the open string states describing the excitations of the D-brane system enters in a crucial way. We also derive the near-extreme results which agree with the semi-classical calculations. (C) 1998 Elsevier Science B.V.

Idioma: Inglês

Tipo (Avaliação Docente): Científica