%0 Journal Article %A Barceló, C. %A Garay Elizondo, Luis Javier %T Quantum fields in anti-de Sitter wormholes %D 1998 %@ 0556-2821 %U https://hdl.handle.net/20.500.14352/59542 %X We study the effects of asymptotically anti-de Sitter wormholes in low-energy field theory and give a general prescription for obtaining the local effective interaction terms induced by them. The choice of vacuum for the matter fields selects a basis of the Hilbert space of anti-de Sitter wormholes whose elements can be interpreted as states containing a given number of particles. This interpretation is subject to the same kind of ambiguity in the definition of a particle as that arising from quantum field theory in curved spacetime. %~