Persistent supercurrents in a planar non-relativistic chiral fluid

Details Persistent supercurrents in a planar non-relativistic chiral fluid Persistent supercurrents in a planar non-relativistic chiral fluid

1994-10-03

arxiv.org/abs/hep-th/9410001v1

Nucl.Phys. B435 (1995) 659-672

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, plain tex, SISSA 133/94/EP

Scientific paper

10.1016/0550-3213(94)00431-D

We study the possible stationary persistent supercurrents flowing on a cylindrical sample supporting a two-dimensional charged fluid. The internal dynamics of the fluid is obtained by means of an effective theory in which the fluid self-interacts through a $U(1)$ gauge field. We find that the presence of persistent supercurrents depends on what kind of gauge field it is. In particular the current is zero if it is a Maxwell gauge field, and it is maximal if it is a Chern-Simons gauge field. There is an intermediate behaviour in presence of both Maxwell and Chern-Simons term. Therefore it appears that persistent supercurrents are possible only if the fluid is chiral.

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