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Dark solitons in holographic superfluids

V. Keränen, E. Keski-Vakkuri, S. Nowling, and K. P. Yogendran
Phys. Rev. D 80, 121901(R) – Published 3 December 2009
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  • INTRODUCTION
  • DARK SOLITONS IN SUPERFLUIDS
  • HOLOGRAPHIC DESCRIPTION
  • NUMERICAL METHOD
  • RESULTS
  • DISCUSSION
    • References

    Abstract

    We construct dark soliton solutions in a holographic model of a relativistic superfluid. We study the length scales associated with the condensate and the charge density depletion, and find that the two scales differ by a nontrivial function of the chemical potential. By adjusting the chemical potential, we study the variation of the depletion of charge density at the interface.

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    • Received 23 July 2009

    DOI:https://doi.org/10.1103/PhysRevD.80.121901

    ©2009 American Physical Society

    Authors & Affiliations

    V. Keränen*, E. Keski-Vakkuri†, S. Nowling‡, and K. P. Yogendran§

    • Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland

    • *ville.keranen@helsinki.fi; also at Department of Physics, University of Helsinki, PO. Box 64, 00014 University of Helsinki, Finland
    • †esko.keski-vakkuri@helsinki.fi
    • ‡sean.nowling@helsinki.fi; also at Department of Mathematics and Statistics, University of Helsinki, PO. Box 64, 00014 University of Helsinki, Finland
    • §yogendran.kalpat@helsinki.fi

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    Issue

    Vol. 80, Iss. 12 — 15 December 2009

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