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arXiv · 1409.2252

Toward a Nonequilibrium Green functions approach to diffusion in strongly coupled finite quantum systems

M. Bonitz·N. Schluenzen·S. Hermanns
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Abstract

Transport properties of strongly correlated quantum systems are of central interest in condensed matter, ultracold atoms and in dense plasmas. There, the proper treatment of strong correlations poses a great challenge to theory. Here, we apply a Nonequilibrium Green Functions approach using a lattice model as a basic system. This allow us to treat a finite spatially inhomogeneous system with an arbitrary nonequilibrium initial state. Placing all particles initially to one side of the system allows for a nonequilibrium study of diffusion. Strong correlation effects are incorporated via T-matrix selfenergies.

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M. Bonitz, N. Schluenzen, S. Hermanns. 2014-09-08. Toward a Nonequilibrium Green functions approach to diffusion in strongly coupled finite quantum systems. https://doi.org/10.1002/ctpp.201400065

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