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Jean Michel D Sellier

how do we impose G

According to Kadanoff-Baym book, formula (2-2), one has: = -i G

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    I do not know how to prove it using the original NEGF notation but Prof. Datta defines

    -i G< = G_n (G_n = electron density)

    in QTAT and ETMS where

    G_n = (Psi)(Psi*)

    (Psi)(Psi*) will be greater than zero ( magnitude of a complex number) and real for all x,t and E — therefore the conditions you are specifying must hold for -iG<.

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