Quantum tunneling in thermal medium Sh . Matsumoto 1 and M . Yoshimura 2 1 Theory Group , KEK Oho 1 - 1 Tsukuba Ibaraki 305 - 0801 Japan
نویسنده
چکیده
Time evolution of tunneling phenomena in medium is studied using a standard model of environment interaction. A semiclassical formula valid at low, but finite temperatures is derived in the form of integral transform for the reduced Wigner function, and the tunneling probability in thermal medium is calculated for a general tunneling potential of one dimensional system. Effect of dissipation, its time evolution in particular, depends on the behavior of the potential far beyond the barrier.
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تاریخ انتشار 2000