Wigner distribution function formalism for superconductors and collisionless dynamics of the superconducting order parameter

Wigner distribution function formalism for superconductors and collisionless dynamics of the superconducting order parameter

A technique for studying collisionless dynamics of a homogeneous superconducting system is developed which is based on Riccati parametrization of the Wigner distribution function. The quantum evolution of the superconducting order parameter, initially deviating from the equilibrium value, is calcula...

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Veröffentlicht in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2004-07, Vol.30 (7), p.661-666
Hauptverfasser: Amin, M. H. S., Bezuglyi, E. V., Kijko, A. S., Omelyanchouk, A. N.
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container_title Low temperature physics (Woodbury, N.Y.)
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creator Amin, M. H. S.
Bezuglyi, E. V.
Kijko, A. S.
Omelyanchouk, A. N.
description A technique for studying collisionless dynamics of a homogeneous superconducting system is developed which is based on Riccati parametrization of the Wigner distribution function. The quantum evolution of the superconducting order parameter, initially deviating from the equilibrium value, is calculated using this technique. The effect of a time-dependent BCS paring interaction on the dynamics of the order parameter is also studied.
doi_str_mv 10.1063/1.1789939
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title Wigner distribution function formalism for superconductors and collisionless dynamics of the superconducting order parameter
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