Event horizons and ergoregions in 3He

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Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
1998
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
1-7
Series
Physical Review D, Volume 58, issue 6
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 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.
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Keywords
fermion quasiparticles, superconductor, superfluid
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Citation
Jacobson , T A & Volovik , G E 1998 , ' Event horizons and ergoregions in 3He ' , Physical Review D , vol. 58 , no. 6 , 064021 , pp. 1-7 . https://doi.org/10.1103/PhysRevD.58.064021