Quantum Statistical Metastability Revisited

Details Quantum Statistical Metastability Revisited Quantum Statistical Metastability Revisited

1993-05-11

arxiv.org/abs/hep-ph/9305242v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 14 pages, 3 figures (available upon request), CMU-HEP93-08, PITT-93-04

Scientific paper

We calculate the decay rate for a state prepared in a thermal density matrix centered on a metastable ground state. We find a rate that is intrinsically time {\it dependent}, as opposed to the {\it constant} rates of previous works. The rate vanishes at early times, rises to a maximum and eventually falls-off to zero as a consequence of unitary time evolution. Finally, we discuss extensions of this calculation to field theories and possible implications for both sphaleron mediated transitions and first order inflationary theories.

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