Wigner entropy production and heat transport in linear quantum lattices

  title={Wigner entropy production and heat transport in linear quantum lattices},
  author={William T. B. Malouf and Jader P. Santos and Luis A. Correa and Mauro Paternostro and Gabriel T. Landi},
  journal={Physical Review A},
When a quantum system is coupled to several heat baths at different temperatures, it eventually reaches a non-equilibrium steady state featuring stationary internal heat currents. These currents imply that entropy is continually being produced in the system at a constant rate. In this paper we apply phase-space techniques to the calculation of the Wigner entropy production on general linear networks of harmonic nodes. Working in the ubiquitous limit of weak internal coupling and weak… 

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