Step-like discontinuities in Bose-Einstein condensates and Hawking radiation: dispersion effects

Details Step-like discontinuities in Bose-Einstein condensates and Hawking radiation: dispersion effects Step-like discontinuities in Bose-Einstein condensates and Hawking radiation: dispersion effects

2010-08-12

arxiv.org/abs/1008.2125v2

Phys.Rev.D83:124047,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

One figure and few comments added. Version accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.83.124047

In this paper we extend the hydrodynamic results of [1] and study,
analytically, the propagation of Bogoliubov phonons on top of Bose-Einstein
condensates with step-like discontinuities by taking into account dispersion
effects. We focus on the Hawking signal in the density-density correlations in
the formation of acoustic black hole-like configurations.

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