Resolvent method of evaluation of the dynamic conductivity for a strongly interacting electron-phonon system
- 1 April 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 25 (4) , 2247-2257
- https://doi.org/10.1103/physreva.25.2247
Abstract
A resolvent superoperator approach is described for the evaluation of the dynamic conductivity of a strongly interacting electron-phonon system, starting from a current-correlation integral formula. The conductivity is expressed in terms of a self-energy superoperator and a self-consistent expression is obtained for this temperature-dependent quantity.Keywords
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