Zeta functions in brane world cosmology

Antonino Flachi, Alan Knapman, Wade Naylor, Misao Sasaki

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We present a calculation of the zeta function and of the functional determinant for a Laplace-type differential operator, corresponding to a scalar field in a higher-dimensional de Sitter brane back ground, which consists of a higher-dimensional anti de Sitter bulk spacetime bounded by a de Sitter section, representing a brane. Contrary to the existing examples, which all make use of conformal transformations, we evaluate the zeta function working directly with the higher-dimensional wave operator. We also consider a generic mass term and coupling to curvature, generalizing previous results. The massless, conformally coupled case is obtained as a limit of the general result and compared with known calculations. In the limit of large anti de Sitter radius, the zeta determinant for the ball is recovered in perfect agreement with known expressions, providing an interesting check of our result and an alternative way of obtaining the ball determinant.

Original languageEnglish
Article number124011
Pages (from-to)124011-1-124011-13
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume70
Issue number12
DOIs
Publication statusPublished - 2004 Dec

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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