Dissipative Dynamics of Quantum Vortices in Superconducting Arrays

Details Dissipative Dynamics of Quantum Vortices in Superconducting Arrays Dissipative Dynamics of Quantum Vortices in Superconducting Arrays

1997-10-28

arxiv.org/abs/cond-mat/9710293v2

Phys. Rev. B 57, 2720 (1998)

Physics

Condensed Matter

Superconductivity

REVTeX, 1 EPS figure, To appear in PRB

Scientific paper

10.1103/PhysRevB.57.2720

We consider a two-dimensional array of ultra-small superconducting grains, weakly coupled by Josephson junctions with large charging energy. We start from an effective action based on a microscopic tunneling Hamiltonian, which includes quasiparticle degrees of freedom, and study the resulting dissipative dynamics of quantum vortices. The equation of motion for a single vortex is deduced, and compared with a commonly adopted phenomenological model.

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