Classical Aspects of Hawking Radiation Verified in Analogue Gravity Experiment
Classical Aspects of Hawking Radiation Verified in Analogue Gravity Experiment
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模拟重力实验验证霍金辐射的经典方面
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
G. Lawrence
中科院分区：
文献类型：
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作者：
S. Weinfurtner;E. Tedford;M. Penrice;W. Unruh;G. Lawrence
弯曲时空中的场的传播与明渠流中的浅水波有相似之处。通过将流线型障碍物放入明渠水流中，我们在障碍物上方创建了一个高速区域，该区域可以包括波层。长（浅水）波向上游传播到这个区域被阻止，并转换为短（深水）波。这是一个白色黑洞（黑洞的时间倒数）的受激霍金辐射的类似物。转换波的振幅的测量表明，它们成对出现，是经典相关的转换过程中的频谱描述的玻尔兹曼分布和玻尔兹曼分布是由流量的变化，在整个白色孔地平线。
There is an analogy between the propagation of fields on a curved spacetime and shallow water waves in an open channel flow. By placing a streamlined obstacle into an open channel flow we create a region of high velocity over the obstacle that can include wave horizons. Long (shallow water) waves propagating upstream towards this region are blocked and converted into short (deep water) waves. This is the analogue of the stimulated Hawking emission by a white hole (the time inverse of a black hole). The measurements of amplitudes of the converted waves demonstrate that they appear in pairs and are classically correlated; the spectra of the conversion process is described by a Boltzmann-distribution; and the Boltzmann-distribution is determined by the change in flow across the white hole horizon.