Event horizons and ergoregions in 3He
Condensed Matter
2009-10-31 v4 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
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 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 \mu K, and via vacuum polarization induced by the effective `electromagnetic field' and `ergoregion'. Superfluid 3He-A thus appears to be a useful system for experimental and theoretical simulations of quantum effects related to event horizons and ergoregions.
Cite
@article{arxiv.cond-mat/9801308,
title = {Event horizons and ergoregions in 3He},
author = {T. A. Jacobson and G. E. Volovik},
journal= {arXiv preprint arXiv:cond-mat/9801308},
year = {2009}
}
Comments
RevTex, 8 pages, 3 figures, submitted to Phys. Rev. D, corrected after referee report