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Topological charge and chiral anomalies in fermi superfluids

Authors
Journal
Annals of Physics
0003-4916
Publisher
Elsevier
Publication Date
Volume
178
Issue
1
Identifiers
DOI: 10.1016/s0003-4916(87)80014-3
Disciplines
  • Mathematics
  • Physics

Abstract

We review some of the topological properties of Fermi superfluids, in particular the persistent currents in superfluid 3 He. We show that the topological charge formalism developed by Garg et al. is related to the chiral anomaly viewpoint of Volovik and co-workers through the Callan-Harvey effect. We stress that the question of the existence of a “twist” term in the current induced by a texture is a history-dependent phenomenon which depends on how the textures are envisaged as being created.

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