Effect of transport coefficients on the time-dependence of density matrix
arXiv:cond-mat/9911015 · doi:10.1088/0305-4470/33/23/304
Abstract
For Lindblad's master equation of open quantum systems with a general quadratic form of the Hamiltonian, the propagator of the density matrix is analytically calculated by using path integral techniques. The time-dependent density matrix is applied to nuclear barrier penetration in heavy ion collisions with inverted oscillator and double-well potentials. The quantum mechanical decoherence of pairs of phase space histories in the propagator is studied and shown that the decoherence depends crucially on the transport coefficients.
arXiv comment13 pages, 4 figures, submitted to J.Phys.A