Steplike discontinuities in Bose-Einstein condensates and Hawking radiation: Dispersion effects

Steplike discontinuities in Bose-Einstein condensates and Hawking radiation: Dispersion effects
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玻色-爱因斯坦凝聚和霍金辐射中的阶梯状不连续性：色散效应

DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Massimiliano Rinaldi
Massimiliano Rinaldi
中科院分区：
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文献类型：
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作者：
Carlos Mayoral;Alessandro Fabbri;Massimiliano Rinaldi

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本文推广了[1]的流体力学结果，并在考虑色散效应的情况下，解析地研究了Bogoliubov声子在阶梯不连续的玻色-爱因斯坦凝聚体上的传播。我们重点研究了霍金信号在声学类黑洞结构形成中的密度-密度相关。
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.