Time evolution of the average energy of a relaxing molecule
- 1 January 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 15 (1) , 197-202
- https://doi.org/10.1103/physreva.15.197
Abstract
Evolution equations for the average energy of a harmonic oscillator in interaction with a bath are derived and solved for two cases: (a) when the probability evolution obeys a master equation with a true decay representing a sink-process like radiative emission occurring simultaneously with vibrational relaxation, and (b) when the Markoffian approximation in the Heisenberg-equation analysis of relaxation is not made, allowing for short-time effects.Keywords
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