Quantum vortex tunneling: Microscopic theory and application to d-wave superconductors
arXiv:cond-mat/0107530
Abstract
We present a microscopic approach to the quantum tunneling of vortices. The formalism characterizes the rate at which a many-body superconducting state with a vortex in one location makes a transition to a second many-body superconducting state with a vortex in a second location. The theory is utilized to study the effect of a d-wave order parameter upon the directionality of vortex tunneling.
4 pages, 2 figures; 3 page appendix