TY - JOUR
T1 - Relaxation to equilibrium of the expectation values in macroscopic quantum systems
AU - Monnai, Takaaki
PY - 2011/7/18
Y1 - 2011/7/18
N2 - 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 during a finite time, and then isolated for a sufficiently long time. We show a quantitative explanation that the initial microcanonical state typically reaches a state whose expectation values are well approximated by the average over another microcanonical ensemble.
AB - 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 during a finite time, and then isolated for a sufficiently long time. We show a quantitative explanation that the initial microcanonical state typically reaches a state whose expectation values are well approximated by the average over another microcanonical ensemble.
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U2 - 10.1103/PhysRevE.84.011126
DO - 10.1103/PhysRevE.84.011126
M3 - Article
C2 - 21867132
AN - SCOPUS:79961125842
SN - 1063-651X
VL - 84
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
IS - 1
M1 - 011126
ER -