Analysis of the Evans and Baranyai variational principle in dilute gases
Open Access
- 3 May 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 70 (18) , 2730-2733
- https://doi.org/10.1103/physrevlett.70.2730
Abstract
A variational principle for thermostated nonequilibrium steady states recently proposed by Evans and Baranyai [Phys. Rev. Lett. 67, 2597 (1991)] is analyzed by means of a model kinetic equation for dilute gases. It is shown that the principle does not apply exactly, although deviations from it are small, especially when the gradients are not very large.Keywords
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