On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time

Details On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time

1993-08-16

arxiv.org/abs/hep-th/9308070v1

Phys.Rev. D49 (1994) 2122-2125

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, LaTeX file, CTP-2213

Scientific paper

10.1103/PhysRevD.49.2122

We study the entropy generation and particle production in scalar quantum field theory in expanding spacetimes with many-particle mixed initial states. The recently proposed coarse-grained entropy approach by Brandenberger et. al. is applied to systems which may have a non-zero initial entropy. We find that although the the particle production is amplified as a result of boson statistics, the (coarse-grained) entropy generation is {\em attenuated} when initial particles are present.

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