Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates
Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates
复制标题
DOI：
10.1088/1367-2630/10/10/103001
复制
发表时间：
2008-03
影响因子：
3.3
通讯作者：
I. Carusotto;S. Fagnocchi;A. Recati;R. Balbinot;A. Fabbri
中科院分区：
文献类型：
--
作者：
I. Carusotto;S. Fagnocchi;A. Recati;R. Balbinot;A. Fabbri
我们报告的数值证据霍金发射的Bogoliubov声子从一个流动的一维原子玻色-爱因斯坦凝聚体的声波视界。霍金辐射的存在是从气体的密度-密度关联函数中的特殊长程模式中揭示出来的。我们的完全微观计算和模拟模型的预测之间的定量协议得到的流体动力学限制。新的功能预测和鲁棒性的霍金信号对有限的温度进行了讨论。
We report numerical evidence of Hawking emission of Bogoliubov phonons from a sonic horizon in a flowing one-dimensional atomic Bose–Einstein condensate. The presence of Hawking radiation is revealed from peculiar long-range patterns in the density–density correlation function of the gas. Quantitative agreement between our fully microscopic calculations and the prediction of analog models is obtained in the hydrodynamic limit. New features are predicted and the robustness of the Hawking signal against a finite temperature discussed.