Phases of translation-invariant systems out of equilibrium: iterative Green’s function techniques and renormalization group approaches
We introduce a method to evaluate the steady-state non-equilibrium Keldysh–Schwinger Green’s functions for infinite systems subject to both an electric field and a coupling to reservoirs. The method we present exploits a physical quasi-translation invariance, where a shift by one unit cell leaves th...
Main Authors: | C Klöckner, D M Kennes, C Karrasch |
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Format: | Article |
Language: | English |
Published: |
IOP Publishing
2020-01-01
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Series: | New Journal of Physics |
Subjects: | |
Online Access: | https://doi.org/10.1088/1367-2630/ab990d |
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