INDUCED GRAVITY IN SUPERFLUID HE-3

Authors
Citation
Ge. Volovik, INDUCED GRAVITY IN SUPERFLUID HE-3, Journal of low temperature physics, 113(5-6), 1998, pp. 667-680
Citations number
38
Categorie Soggetti
Physics, Applied
ISSN journal
00222291
Volume
113
Issue
5-6
Year of publication
1998
Pages
667 - 680
Database
ISI
SICI code
0022-2291(1998)113:5-6<667:IGISH>2.0.ZU;2-V
Abstract
The gapless fermionic excitations in superfluid He-3-A have the ''rela tivistic'' spectrum close to the gap nodes. This allowed us to model t he modern cosmological scenaria of baryogenesis and magnetogenesis. Th e same massless fermions induce another low-energy property of the qua ntum vacuum - the gravitation. The effective metric of the space, in w hich the free quasiparticles move along geodesics, is not generally fl at. Different order parameter textures correspond to curved effective space and produce many different exotic metrics, which are theoretical ly discussed in quantum gravity and cosmology. This includes the conde nsed matter analog of the black hole and event horizon, which can be r ealized in the moving soliton. This will allow us to simulate and thus experimentally investigate such quantum phenomena as the Hawking radi ation from the horizon, the Bekenstein entropy of the black hole, and the structure of the quantum vacuum behind the horizon. One can also s imulate the conical singularities produced by cosmic strings and monop oles; inflation; temperature dependence of the cosmological and Newton constants, etc.