2005/11/26 by Kurt Langfeld, K. Langfeld, Langfeld, K. +6 · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Physics of Superconductivity and Magnetism #Theoretical and Computational Physics #cond-mat.supr-con #hep-lat
paper · pdf · doi:10.48550/arxiv.cond-mat/0511637
4 pages, 1 figure; submitted to Physical Review
arxiv created 2005/11/26 · arxiv updated 2009/12/01
The magnetic flux noise induced by vortices in thin superconducting films is studied. Rigid vortices in thin films as well as pancake vortices in the pancake gas regime are addressed. The vortex dynamics is described by a Feynman path integral which fully accounts for the balance between vortex entropy and vortex energetics. We find that vortex pair creation (annihilation) in the presence of pinning is a natural source for noise with a 1/f spectrum.