Counting the negative eigenvalues of the thermalon in three dimensions

Rodrigo Aros, Andrés Gomberoff, Alejandra Montecinos

Resultado de la investigación: Contribución a una revistaArtículo

Resumen

Some years ago it was shown that the cosmological constant may be reduced by thermal production of membranes that, after nucleation, collapse into a black hole. The probability of the process was calculated in the leading semiclassical approximation by studying an associated Euclidean configuration called the thermalon. Here we investigate the thermalon in three spacetime dimensions, describing the nucleation of closed strings that collapse into point particle singularities. In this context we may analyze the one-loop structure without the well-known problems brought in by the propagating gravitational degrees of freedom. We found that the coupling to gravity may increase the number of negative eigenvalues of the operator.

Idioma originalInglés
Número de artículo063501
PublicaciónPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volumen77
N.º6
DOI
EstadoPublicada - 3 mar 2008

Áreas temáticas de ASJC Scopus

  • Física nuclear y de alta energía
  • Física y astronomía (miscelánea)

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