Shortcuts in particle production in a toroidally compactified space-time
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We investigate the particle production in a toroidally compactified space-time due to the expansion of a Friedmann cosmological model in ℝ3 × S1 outside a U(1) local cosmic string. The case of a Friedmann space-time is also investigated where torsion is incorporated in the connection. We present a generalization to toroidal compactification of p extra dimensions, where the topology is given by ℝ3 × Tp. Some implications are presented and discussed. Besides the dynamics of space-time, we investigate in detail the physical consequences of the topological transformations. © World Scientific Publishing Company.
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Compactification, Cosmic string, Extra-dimension, Particle production, Torsion
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Inglês
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International Journal of Modern Physics D, v. 16, n. 11, p. 1853-1861, 2007.
