期刊
PHYSICAL REVIEW LETTERS
卷 126, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.111301
关键词
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资金
- Spanish Mineco [FIS2017-84440-C2-1-P]
- Generalitat Valenciana [PROMETEO/2020/079]
This study presents a simple model to describe the formation of an acoustic black hole in a Bose-Einstein condensate, allowing for analytical computation of the evolution of the corresponding density-density correlator over time. The emergence of analog Hawking radiation is observed from a quantum atmosphere region significantly displaced from the horizon, and is quantitatively studied at T = 0 and also in the presence of an initial temperature T as commonly found in experiments.
Inspired by a recent experiment by Steinhauer and co-workers, we present a simple model which describes the formation of an acoustic black hole in a Bose-Einstein condensate, allowing an analytical computation of the evolution in time of the corresponding density-density correlator. We show the emergence of analog Hawking radiation out of a quantum atmosphere region significantly displaced from the horizon. This is quantitatively studied both at T = 0 and even in the presence of an initial temperature T, as is always the case experimentally.
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