Event horizons and ergoregions in 3He

T. A. Jacobson and G. E. Volovik
Phys. Rev. D 58, 064021 – Published 27 August 1998
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Abstract

Event horizons for fermion quasiparticles naturally arise in moving textures in superconductors and Fermi superfluids. We discuss the example of a planar soliton moving in a superfluid 3HeA, which is closely analogous to a charged rotating black hole. The moving soliton will radiate quasiparticles via the Hawking effect at a temperature of about 5 μK, and via vacuum polarization induced by the effective “electromagnetic field” and “ergoregion.” The superfluid 3HeA thus appears to be a useful system for experimental and theoretical simulations of quantum effects related to event horizons and ergoregions.

  • Received 27 March 1998

DOI:https://doi.org/10.1103/PhysRevD.58.064021

©1998 American Physical Society

Authors & Affiliations

T. A. Jacobson

  • Department of Physics, University of Maryland, College Park, Maryland 20742-4111

G. E. Volovik

  • Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT, Finland
  • L. D. Landau Institute for Theoretical Physics, Kosygin Street 2, 117940 Moscow, Russia

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Vol. 58, Iss. 6 — 15 September 1998

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