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Wormhole effective interactions in anti-de Sitter spacetime

AuthorsBarceló, Carlos ; Garay, Luis Javier
KeywordsEffective interactions
Anti-de Sitter wormholes
Harmonic expansion
Issue Date1998
PublisherWorld Scientific Publishing
CitationInternational Journal of Modern Physics D 7: 623- 645 (1998)
AbstractThe effects of asymptotically anti-de Sitter wormholes in low-energy field theory are calculated in full detail for three different matter contents: a conformal scalar field, an electromagnetic field and gravitons. There exists a close relation between the choice of vacuum for the matter fields and the selection of a basis of the Hilbert space of anti-de Sitter wormholes. In the presence of conformal matter (i.e., conformal scalar or electromagnetic fields), this relation allows us to interpret the elements of these bases as wormhole states containing a given number of particles. This interpretation is subject to the same kind of ambiguity in the definition of particle as that arising from quantum field theory in curved spacetime. In the case of gravitons, owing to the nonconformal coupling, it is not possible to describe wormhole states in terms of their particle content.
Identifiersdoi: 10.1142/S0218271898000425
issn: 0218-2718
Appears in Collections:(IAA) Artículos
(CFMAC-IFF) Artículos
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