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Massive Charged Strings in the Description of Vortex Ring Quantum Nucleation

Authors
  • Fischer, Uwe R.1
  • 1 University of Tübingen, Institut für Theoretische Astrophysik, Germany
Type
Published Article
Journal
Journal of Low Temperature Physics
Publisher
Kluwer Academic Publishers-Plenum Publishers
Publication Date
Jan 01, 1998
Volume
110
Issue
1-2
Pages
39–44
Identifiers
DOI: 10.1023/A:1022550314485
Source
Springer Nature
Keywords
License
Yellow

Abstract

We demonstrate the way in which vortex rings in neutral superfluids are equivalent to massive, charged, elastic strings in an electromagnetic field defined locally on the string from a Kalb-Ramond gauge field. We argue that the action thus obtained describes an intermediate scale of vortex motion with phonon fluctuations of the line between the incompressible hydrodynamic régime and the microscopic one dominated by roton emission and absorption. The formalism thus gives an accurate semiclassical picture of vortex string motion and is of relevance for the description of vortex ring quantum nucleation in a perturbation theory of the purely incompressible case.

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