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Dynamic, Ultra-Slow Optical-Matter Wave Analog of an Event Horizon



C. J. Zhu, Lu Deng, Edward W. Hagley, Mo-Lin Ge


We investigate theoretically the effects of a dynamically increasing medium index on optical- wave propagation in a rubidium condensate. A long pulsed pump laser coupling a D2 line transition produces a rapidly growing internally generated field. This results in a significant optical self-focusing effect and creates a dynamically growing medium index anomaly that propagates ultraslowly with the internally generated field. When a fast probe pulse injected after a delay catches up with the dynamically increasing index anomaly, it is forced to slow down and is prohibited from crossing the anomaly, thereby realizing an ultraslow optical-matter wave analog of a dynamic white-hole event horizon
Physical Review Letters


Astrophysics, event horizon, optical wave mixing, Bose-condensate


Zhu, C. , Deng, L. , Hagley, E. and Ge, M. (2014), Dynamic, Ultra-Slow Optical-Matter Wave Analog of an Event Horizon, Physical Review Letters, [online],, (Accessed June 24, 2024)


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Created August 27, 2014, Updated October 12, 2021