Relaxation of an electron system: Conserving approximation
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Relaxation of an electron system: Conserving approximation
The dynamic response of an interacting electron system is determined by an extension of the relaxation-time approximation forced to obey local conservation laws for number, momentum, and energy. A consequence of these imposed constraints is that the local electron equilibrium distribution must have a spaceand timedependent chemical potential, drift velocity, and temperature. Both quantum kineti...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2002
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.65.115109