Electron Greens function evolution in the two-time plane

Imaginary part of g<(t_1,t_2) for fixed momentum

Picture shows the Greens function propagating from the initial time point t_1=t_2=0 along the time diagonal.
Along the time diagonal the electron probability density (Wigner distribution) is increasing (for this momentum value)
Notice the buildup of the oscillations across the time diagonal reflecting the electron spectrum.
Color map: electron density increases from light blue (=0) - to red (=1), away from diagonal g< oscillates between +1 and -1

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Computation/Animation by Dirk Semkat and Michael Bonitz

Electron Greens function evolution in the two-time plane

Imaginary part of g<(t_1,t_2) for fixed momentum

Animation showing surface plots of the Greens functions| Idea of Nonequilibrium Greens functions Back to main page | Hauptseite

Animation showing surface plots of the Greens functions| Idea of Nonequilibrium Greens functions
Back to main page | Hauptseite