Nonlinear Phenomena in Complex Systems, 2009, Vol.12, No.4, pp.506-513

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2009, Vol.12, No.4, pp.506-513

Coherent Charge Transport in Strongly Correlated Systems and Quasiparticle Pair Production.
H. V. Grushevskaya

By means of the Dyson equation for a matrix of Green functions, charge transport in strongly correlated systems has been considered. The gradient approximation and Wigner representation were used. The contribution of the processes of quasi-particle pair production into coherent charge transfer in a quantum medium is taken into account. The system of equations describing a state localized in the process of quantum diffusion has been obtained.
Key words: strongly correlated system, pair production, coherent charge transfer

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