Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-11-15
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, LATEX file. To be published in the Proceedings of COSMO2K (World Scientific)
Scientific paper
The fundamental problem of how tunneling in thermal medium is completed is addressed, and a new time scale of order 1/friction for its termination, which is usually much shorter than the Hubble time, is pointed out. Enhanced non-linear resonance is responsible for this short time scale. This phenomenon occurs when the semiclassical periodic motion in a metastable potential well resonates with one of the environment harmonic oscillators coupled to its motion.
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