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

Amin, M.H.S. ; Bezuglyi, E.V. ; Kijko, A.S. ; Omelyanchouk, A.N.

Тема: Сверхпроводимость и мезоскопические структуры

Інший ID: PACS: 74.20.–z, 74.25.–q

URI: http://dspace.nbuv.gov.ua/handle/123456789/119841

Посилання: Wigner distribution function formalism for superconductors and collisionless dynamics of the superconducting order parameter / M.H.S. Amin, E.V. Bezuglyi, A.S. Kijko, A.N. Omelyanchouk // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 874-880. — Бібліогр.: 19 назв. — англ.

Підтримка: The authors express their gratitude to B.Z. Spivak and A.M. Zagoskin for discussing problems encountered in this work.

Дата: 2004

Завантажень: 359

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

Анотація:

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.

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