Resonant Hawking radiation as an instability

Abstract

We consider a simple model for a black-hole laser: a Bose-Einstein condensate with uniform speed of sound and partially uniform flow, establishing two horizons, a black-hole and a white-hole horizon. Waves confined between the horizons are amplified similar to radiation in a laser cavity. Black-hole lasing appears as an instability with discrete sets of modes given approximately by a round-trip condition. We found that, in addition to the regular Hawking radiation, trans-Planckian radiation does tunnel out of the black-hole laser.

arXiv comment15 pages, 9 figures, 25 references

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Cited by in corpus (11)

• Machine learning for gravitational-wave detection: surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo
• Optical analogues of black-hole horizons
• Hawking radiation in optics and beyond
• Analytical description of quantum emission in optical analogues to gravity
• Coherent and squeezed states: introductory review of basic notions, properties and generalizations
• Long time universality of black-hole lasers
• The BHL-BCL crossover: from nonlinear to linear quantum amplification
• Instabilities in an optical black-hole laser
• Negative frequencies in pulse propagation equations and the double analytic signal
• Time Crystal from Self-Amplification of Spontaneous Analog Hawking Radiation
• Acoustic horizons and the Hawking effect in polariton fluids of light