Electron pairing by Coulomb repulsion in narrow band structures
by K.M.Frahm and D.L.Shepelyansky
arXiv:2002.06556[condmat.suprcon]
Pair formation of two electrons by Coulomb repuslion of a square
tightbiding lattice with a bandwidth B=16 and interaction U=2; two moments
of time are shown (t = 200 (left), t= 4000 (right)); color is proportional
to electron density (red/blue for maximum/zero); diagonal density
corresponds to pair propagation, size is 128 X 128.

Article download arXivv1 (Feb 2020)
(here) Video for Fig.3 and Fig.4 of the paper ( fig3video) and ( fig4video); see description in SupMat part of the paper Video of electron propagation in time are available at (here ); see README file for explanations (here )
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