Wa. Majewski et Rf. Streater, DETAILED BALANCE AND QUANTUM DYNAMICAL MAPS, Journal of physics. A, mathematical and general (Print), 31(39), 1998, pp. 7981-7995
Let T be a stochastic map on a C-algebra A, and omega a faithful stat
e. Let pi(omega)(T) be the induced action of T on the GNS Hilbert spac
e H-omega, and pi(omega)(T) its adjoint on H-omega. We say T obeys de
tailed balance II if pi(omega)(T) is also induced by a stochastic map
. In that case we prove that pi(omega)(T) is a contraction on H-omega
commuting with the modular operator. The relation of this idea to micr
oscopic reversibility is discussed. An entropy estimate is presented.