From Fundamental Strings to Small Black Holes

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Cornalba, L (Autor) Outra; Costa, MS (Autor) FCUP; Penedones, J (Autor) FCUP; Vieira, P (Autor) Outra

Revista

Título: Nuclear Physics B - Proceedings Supplements

Vol. 171

Páginas: 306-307

ISSN: 0920-5632

Editora: North-Holland Publ Co

Indexação

ISI Web of Knowledge

Scopus - 1 Citação

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-007-J8N

DOI: 10.1016/j.nuclphysbps.2007.06.042

Abstract (EN): We give evidence in favour of a string/black hole transition in the case of BPS fundamental string states of the Heterotic string. Our analysis goes beyond the counting of degrees of freedom and considers the evolution of dynamical quantities in the process. As the coupling increases, the string states decrease their size up to the string scale when a small black hole is formed. We compute the absorption cross section for several fields in both the black hole and the perturbative string phases. At zero frequency, these cross sections can be seen as order parameters for the transition. In particular, for the scalars fixed at the horizon the cross section evolves to zero when the black hole is formed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica