1202.3292 (V. I. Yukalov)

Equilibration of quasi-isolated quantum systems    [PDF]

V. I. Yukalov

The evolution of a quasi-isolated finite quantum system from a nonequilibrium
initial state is considered. The condition of quasi-isolation allows for the
description of the system dynamics on the general basis, without specifying the
system details and for arbitrary initial conditions. The influence of
surrounding results in (at least partial) equilibration and decoherence. The
resulting equilibrium state bears information on initial conditions and is
characterized by a representative ensemble. It is shown that the system average
information with time does not increase. The partial equilibration and
non-increase of average information explain the irreversibility of time.

View original: http://arxiv.org/abs/1202.3292