A variation principle in the quantum theory of irreversible processes formulated in a superspace

Masakazu Ichiyanagi

Physica A: Statistical Mechanics and its Applications, 1986, vol. 137, issue 3, 623-638

Abstract: A method is proposed for investigating the nonequilibrium fluctuations in an arbitrary system subjected to the influence of an external perturbation. We reformulate Nakano's variation principle in a Liouville (super-) space. An exact formula is obtained for the entropy production of a scattering problem. The formula is a matrix element of the scattering super-operator. An exact formula is also given for a nonlinear nonequilibrium fluctuation-dissipation relation.

Date: 1986
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:137:y:1986:i:3:p:623-638

DOI: 10.1016/0378-4371(86)90097-X

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