Coarse-grained entropy and stimulated emission in curved space-time.
نویسنده
چکیده
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 particle production is amplified as a result of boson statistics, the (coarse-grained) entropy generation is attenuated when initial particles are present. ∗Supported in part by funds provided by the U.S. Department of Energy (DOE) under contract ♯DEAC02-76ER03069.
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ورودعنوان ژورنال:
- Physical review. D, Particles and fields
دوره 49 4 شماره
صفحات -
تاریخ انتشار 1994