A Contribution to the Theory of Nonequilibrium Statistical Mechanics. III.Derivation of the Quantum Kinetic Equation
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By means of the time-smoothing method developed in the previous papers of thisseries, the quantum kinetic equation is derived from the principles of statisticalmechanics. In this paper, we avoid the BBGKY hierarchy; instead we use theLiouville-von Neumann equation for the time-smoothed density matrix. TheBoltzmann distribution function is defined in terms of this time-smoothed densitymatrix. The present scheme may be applied to strong-coupling systems even if theyare not in near equilibrium.
- 社団法人日本物理学会の論文
- 1989-08-15
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