Shortcuts in particle production in a toroidal compactified spacetime

Details Shortcuts in particle production in a toroidal compactified spacetime Shortcuts in particle production in a toroidal compactified spacetime

2006-12-08

arxiv.org/abs/gr-qc/0612054v4

Int.J.Mod.Phys.D16:1853-1861,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, RevTeX, to be published in Int.J.Mod.Phys.D 11 (2007)

Scientific paper

10.1142/S0218271807011140

We investigate the particle production in a toroidal compactified spacetime due to the expansion of a Friedmann cosmological model in R3 x S1 outside a U(1) local cosmic string. The case of a Friedmann spacetime is also investigated when torsion is incorporated in the connection. We present a generalization to toroidal compactification of p extra dimensions, where the topology is given by R3 x T^p. Some implications are presented and discussed. Besides the dynamics of spacetime, we also investigate in details the physical consequences of the topological transformations.

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