Effect of transport coefficients on the time-dependence of density matrix

Details Effect of transport coefficients on the time-dependence of density matrix Effect of transport coefficients on the time-dependence of density matrix

1999-11-02

arxiv.org/abs/cond-mat/9911015v1

Physics

Condensed Matter

13 pages, 4 figures, submitted to J.Phys.A

Scientific paper

10.1088/0305-4470/33/23/304

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.

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