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Monopole, half-quantum vortex, and nexus in chiral superfluids and superconductors

  • Condensed Matter
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Abstract

Two exotic objects are still not identified experimentally in chiral superfluids and superconductors. These are the half-quantum vortex, which plays the part of the Alice string in relativistic theories [A. S. Schwarz, Nucl. Phys. B 208, 141 (1982)], and the hedgehog in the Î field, which is the counterpart of the Dirac magnetic monopole. These two objects of different dimensionality are topologically connected. They form a combined object which is called a nexus [John M. Cornwall, hep-th/9911125; Phys. Rev. D 59, 125015 (1999); Phys. Rev. D 58, 105028 (1998)] or center monopole [N. N. Chernodub, M. I. Polikarpov, A. I. Veselov and M. A. Zubkov, Nucl. Phys. Proc. Suppl. 73, 575 (1999)] in relativistic theories. Such a combination will permit the observation of half-quantum vortices and monopoles in several realistic geometries.

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Authors and Affiliations

  1. Low Temperature Laboratory, Helsinki University of Technology, FIN-02015 HUT, Finland

    G. E. Volovik

  2. Landau Institute of Theoretical Physics, Russian Academy of Sciences, 117334, Moscow, Russia

    G. E. Volovik

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  1. G. E. Volovik
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Pis’ma Zh. Éksp. Teor. Fiz. 70, No. 12, 776–779 (25 December 1999)

Published in English in the original Russian journal. Edited by Steve Torstveit.

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Volovik, G.E. Monopole, half-quantum vortex, and nexus in chiral superfluids and superconductors. Jetp Lett. 70, 792–796 (1999). https://doi.org/10.1134/1.568231

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  • DOI: https://doi.org/10.1134/1.568231

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