Friedmann universes connected by Reissner-Nordström wormholes: Quantum effects

Details Friedmann universes connected by Reissner-Nordström wormholes: Quantum effects Friedmann universes connected by Reissner-Nordström wormholes: Quantum effects

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrvd..51.2782b&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 51, Issue 6, 15 March 1995, pp.2782-2791

Physics

2

Spacetime Topology, Causal Structure, Spinor Structure, Lower Dimensional Models, Minisuperspace Models, Quantum Aspects Of Black Holes, Evaporation, Thermodynamics

Scientific paper

In a model of a wormhole consisting of closed Friedmann regions connected by a Reissner-Nordström black hole previously introduced, quantum effects developing in strong curvature regions are investigated. The lack of appropriate theoretical instruments limits the analysis to a two-dimensional section of the original model. We show that inside the wormhole, at the Cauchy horizon, the two-dimensional curvature blows up stronger as compared to the classical case. The resulting divergence is still mild enough for the tidal impulse to stay finite. The extension of this result to four dimensions is, however, rather problematic.

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