Evolution of the dynamics of neutral superconductors between BCS and BEC regimes: the variational approach

• Published in: Физика низких температур
• Date: 2018
• Main Authors: Chubukov, A.V., Mozyrsky, D.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2018
• Subjects: Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/176148
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Evolution of the dynamics of neutral superconductors between BCS and BEC regimes: the variational approach / A.V. Chubukov, D. Mozyrsky // Физика низких температур. — 2018. — Т. 44, № 6. — С. 684-690. — Бібліогр.: 42 назв. — англ.

We use variational approach to analyze the evolution of the dynamics of a neutral s-wave superconductor between BCS and BEC regimes. We consider 2D case, when BCS–BEC crossover occurs already at weak coupling and is governed by the ratio of the two scales — the Fermi energy EF and the bound state en...