Absence of electron dephasing at zero temperature
classification
❄️ cond-mat.stat-mech
cond-mat.str-el
keywords
interactiondephasingtemperaturezeroabsencebeenbreakingcalculations
read the original abstract
Dephasing of electrons due to the electron-electron interaction has recently been the subject of a controversial debate, with different calculations yielding mutually incompatible results. In this paper we prove, by means of Ward identities, that neither a Coulomb interaction nor a short-ranged model interaction can lead to phase breaking at zero temperature in spatial dimensions d>2.
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