M ar 1 99 7 From Effective BCS Action to Vortex Dynamics
نویسنده
چکیده
The topological term in the effective action for the electrically neutral BCS system is discussed. It is applied for the calculation of the transverse force acting on the vortex in the limit of the smooth vor-tex core and vanishing interlevel distance in the vortex core. The controversy between the topological terms in cond-mat/9703124 and cond-mat/9411047 is resolved.
منابع مشابه
ar X iv : c on d - m at / 9 71 11 62 v 1 1 7 N ov 1 99 7 Berry Phase and Dissipation of Topological Singularities
We outline a path integral derivation of both the transverse force, the Berry phase, and friction for a vortex from the microscopic fermionic superfluid theory. The derivation manifests transparently the mutual independence of the Berry phase and dissipative terms in the effective vortex action. 1
متن کاملFrom Effective Bcs Action to Vortex Dynamics
The topological term in the effective action for the electrically neutral BCS system is discussed. It is applied for the calculation of the transverse force acting on the vortex in the limit of the smooth vor-tex core and vanishing interlevel distance in the vortex core. The controversy between the topological terms in cond-mat/9703124 and cond-mat/9411047 is resolved.
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