Induced Gravity in Superfluid 3He
Abstract
The gapless fermionic excitations in superfluid 3HeA have the "relativistic" spectrum close to the gap nodes. This allowed us to model the modern cosmological scenaria of baryogenesis and magnetogenesis. The same massless fermions induce another lowenergy property of the quantum vacuum  the gravitation. The effective metric of the space, in which the free quasiparticles move along geodesics, is not generally flat. Different order parameter textures correspond to curved effective space and produce many different exotic metrics, which are theoretically discussed in quantum gravity and cosmology. This includes the condensed matter analog of the black hole and event horizon, which can be realized in the moving soliton. This will allow us to simulate and thus experimentally investigate such quantum phenomena as the Hawking radiation from the horizon, the Bekenstein entropy of the black hole, and the structure of the quantum vacuum behind the horizon. One can also simulate the conical singularities produced by cosmic strings and monopoles; inflation; temperature dependence of the cosmological and Newton constants, etc.
 Publication:

arXiv eprints
 Pub Date:
 June 1998
 arXiv:
 arXiv:condmat/9806010
 Bibcode:
 1998cond.mat..6010V
 Keywords:

 Condensed Matter;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology
 EPrint:
 invited talk given at Symposium on Quantum Fluids and Solids, QFS98, Amherst, June 814