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    Relaxation in Time-Dependent Current-Density-Functional Theory

    D'Agosta, Roberto
    Vignale, Giovanni, 1957-
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    [PDF] RelaxationTimeDependentCurrent.pdf (257.5Kb)
    Date
    2006
    Format
    Article
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    Abstract
    We apply the time-dependent current-density-functional theory to the study of the relaxation of a closed many-electron system evolving from a nonequilibrium initial state. We show that the self-consistent unitary time evolution generated by the exchange-correlation vector potential irreversibly drives the system to equilibrium. We also show that the energy dissipated in the Kohn-Sham system, i.e., the noninteracting system whose particle and current densities coincide with those of the physical system under study, is related to the entropy production in the real system.
    URI
    http://hdl.handle.net/10355/7754
    Citation
    Phys. Rev. Lett. 96, 016405 (2006) [4 pages]
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