Departing from Thermality of Analogue Hawking Radiation in a Bose-Einstein Condensate

被引：43

作者：

Isoard, M. ^{[1
]}

Pavloff, N. ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, LPTMS, F-91405 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 06期

关键词：

PARTICLE CREATION; PHASE;

D O I：

10.1103/PhysRevLett.124.060401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the quantum fluctuations in a one-dimensional Bose-Einstein condensate realizing an analogous acoustic black hole. The taking into account of evanescent channels and of zero modes makes it possible to accurately reproduce recent experimental measurements of the density correlation function. We discuss the determination of Hawking temperature and show that in our model the analogous radiation presents some significant departure from thermality.

引用

页数：6

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