Nonequilibrium Electrons and Phonons in Superconductors by Armen M. Gulian, Gely F. Zharkov

By Armen M. Gulian, Gely F. Zharkov

This ebook introduces the most suggestions of nonequilibrium phenomena in superconductors. The authors hide either experimentally well-understood subject matters and difficulties which physicists may possibly problem extra in view of present theoretical realizing. a few of these subject matters comprise thermoelectric phenomena, impression of laser radiation in addition to fluctuations in superconductors.

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Owing to the presence of the pair condensate in the system, the T-product may be written in the form (here the electrons’ scattering processes and the renormalization of their chemical potential are neglected). 2. Off-Diagonal Long-Range Order We can now introduce the anomalous, nondiagonal Green’s functions which shows that the quantum states with N and paired particles (Cooper pairs) are indistinguishable. The last circumstance is connected with the abovementioned macroscopic occupation of the paired states, and allows one to neglect the fluctuations in the number of pairs.

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