Probability of passing through a parabolic barrier and thermal decay rate: Case of linear coupling both in momentum and in coordinate
R. A. KuzyakinJoint Institute for Nuclear Research, RU-141980 Dubna, RussiaV. V. SargsyanJoint Institute for Nuclear Research, RU-141980 Dubna, RussiaG. G. AdamianJoint Institute for Nuclear Research, RU-141980 Dubna, RussiaN. V. AntonenkoJoint Institute for Nuclear Research, RU-141980 Dubna, Russia
2011en
ABI
Abstract
With the quantum diffusion approach, the probability of passing through the parabolic barrier and the quasistationary thermal decay rate from a metastable state are examined in the limit of linear coupling both in momentum and in coordinate between a collective subsystem and the environment. An increase of passing probability with friction coefficient is demonstrated to occur at subbarrier energies.
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Cited by 20 references