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arXiv 1808.09244gr-qcphysics.optics
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光学中受激霍金辐射的观测

Observation of Stimulated Hawking Radiation in Optics

Jonathan Drori, Yuval Rosenberg, David Bermudez, Yaron Silberberg, Ulf Leonhardt

摘要:

霍金辐射理论可以在实验室类似的黑洞中得到检验。我们使用非线性纤维光学中的光脉冲来建立人工事件视界。每个脉冲通过克尔效应产生折射率的移动扰动。当探测光的群速度因扰动而减慢,与脉冲的速度相匹配时,探测光将其视为事件视界。我们在实验中观察到,探测器激发了霍金辐射,这种辐射发生在极端非线性的纤维光学中,其中正负频率混合。

英文摘要:

The theory of Hawking radiation can be tested in laboratory analogues of black holes. We use light pulses in nonlinear fiber optics to establish artificial event horizons. Each pulse generates a moving perturbation of the refractive index via the Kerr effect. Probe light perceives this as an event horizon when its group velocity, slowed down by the perturbation, matches the speed of the pulse. We have observed in our experiment that the probe stimulates Hawking radiation, which occurs in a regime of extreme nonlinear fiber optics where positive and negative frequencies mix.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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