Incoherent tunneling at weak bias: Strong quantum damping

H. Dekker

Physica A: Statistical Mechanics and its Applications, 1988, vol. 154, issue 1, 61-88

Abstract: Using a generalized version of Langer's “imaginary part of the free energy” method involving an “extended” bounce and doing a fully “dynamical” evaluation of the weak bias anomalous fluctuation mode, the thermal dependence of the decay rate Γ = A exp(-B) is studied for a metastable quartic potential model in the strong ohmic quantum damping regime in order to extend previous work to a considerably more realistic range of parameters. In particular, the earlier restrictions 12 B exp(-ħω0/2kBT)→0 and 2πkBT/ħω0→0 are removed. As a consequence there appear - inter alia - T2 -corrections in B similar to those occuring for strongly biased metastable systems.

Date: 1988
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:154:y:1988:i:1:p:61-88

DOI: 10.1016/0378-4371(88)90181-1

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