Event horizons and ergoregions in 3He

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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 3He−A, 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 3He−A thus appears to be a useful system for experimental and theoretical simulations of quantum effects related to event horizons and ergoregions.


Original languageEnglish
Article number064021
Pages (from-to)1-7
JournalPhysical Review D
Issue number6
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

    Research areas

  • fermion quasiparticles, superconductor, superfluid

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