Vortex Density Models for Superconductivity and Superfluidity

S. Baldo, R. L. Jerrard, G. Orlandi, H. M. Soner

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We study some functionals that describe the density of vortex lines in superconductors subject to an applied magnetic field, and in Bose-Einstein condensates subject to rotational forcing, in quite general domains in 3 dimensions. These functionals are derived from more basic models via Gamma-convergence, here and in the companion paper (Baldo et al. in Arch Rat Mech Anal 205(3):699-752, 2012). In our main results, we use these functionals to obtain leading order descriptions of the first critical applied magnetic field (for superconductors) and forcing (for Bose-Einstein), above which ground states exhibit nontrivial vorticity, as well as a characterization of the vortex density in terms of a non local vector-valued generalization of the classical obstacle problem.

Original languageEnglish (US)
Pages (from-to)131-171
Number of pages41
JournalCommunications In Mathematical Physics
Volume318
Issue number1
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics

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