Quantum equilibrium factor in the decay of a metastable state at low temperature
Quantum equilibrium factor in the decay of a metastable state at low temperature
| dc.contributor.author | Barik, Debashis | |
| dc.contributor.author | Ray, Deb Shankar | |
| dc.date.accessioned | 2022-03-27T09:45:11Z | |
| dc.date.available | 2022-03-27T09:45:11Z | |
| dc.date.issued | 2006-06-01 | |
| dc.description.abstract | The Kramers factor is the key nonequilibrium contribution to the decay rate of a metastable state of a system in contact with a thermal bath. In the 1980s Wolynes introduced a quantum equilibrium correction to the overall rate. This is responsible for tunnelling and quantum enhancement of rate at low temperature. Based on a quantum formulation of a system-reservoir model and a Wigner canonical thermal distribution function for the harmonic oscillator bath we suggest a generalization of the quantum equilibrium factor and a consequent rate expression which are valid in the deep tunnelling region. © 2006 IOP Publishing Ltd. and SISSA. | |
| dc.identifier.citation | Journal of Statistical Mechanics: Theory and Experiment | |
| dc.identifier.issn | 17425468 | |
| dc.identifier.uri | 10.1088/1742-5468/2006/06/P06001 | |
| dc.identifier.uri | https://iopscience.iop.org/article/10.1088/1742-5468/2006/06/P06001 | |
| dc.identifier.uri | https://dspace.uohyd.ac.in/handle/1/13268 | |
| dc.subject | Brownian motion | |
| dc.subject | Dynamical processes (theory) | |
| dc.subject | Stochastic particle dynamics (theory) | |
| dc.subject | Stochastic processes (theory) | |
| dc.title | Quantum equilibrium factor in the decay of a metastable state at low temperature | |
| dc.type | Journal. Article | |
| dspace.entity.type |
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