A quantum mechanical explanation of the relaxation to equilibrium is shown for macroscopic systems for nonintegrable cases and numerically verified. The macroscopic system is initially in an equilibrium state, subsequently externally perturbed dur...
Journal of Physical Chemistry B 115(18) 5144-5147 2011年5月
We show that systems driven by an external force and described δiS = KbD[f(t, γ(t)) 7∥ fs (t, γs (t)) fr eq (ζ(t)] ≥ 0 by Nose-Hoover dynamics allow for a consistent nonequilibrium thermodynamics description when the thermostatted variable is init...
K. Nakamura   S. K. Avazbaev   Z. A. Sobirov   D. U. Matrasulov   T. Monnai   
PHYSICAL REVIEW E 83(4) 2011年4月
We consider a quantum gas of noninteracting particles confined in the expanding cavity and investigate the nature of the nonadiabatic force which is generated from the gas and acts on the cavity wall. First, with use of the time-dependent canonica...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 83(9) 094001 2014年9月
We show that it is possible to calculate equilibrium expectation values of many-body correlated quantities such as the characteristic functions and probability distributions with the use of only a single typical pure state. It also means that we c...