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Communication dans un congrès Année : 2019

Analog Hawking Effect Enhanced by 4th-Order Dispersion Phase Matching

Résumé

Hawking radiation [1], the spontaneous emission of radiation by a black hole, is one of the most important discoveries of the XXth century, uniting gravity and thermodynamics, and providing a key insight into the as yet undiscovered theory of quantum gravity. In 1981, Unruh showed that analogs of Hawking radiation could be found in material systems in which a background flow induces an effective horizon for the quasi-particles [2]. The possibility of demonstrating Hawking-like radiation in optics [3] has attracted much attention. The idea is that a short pulse induces, through the Kerr nonlinearity, a refractive index change δ n which gives rise to an effective horizon for a probe wave at another frequency. Despite considerable progress, both theoretical and experimental [4,5], demonstration of Hawking-like radiation in optics remains elusive because of the requirement of an ultra-high peak power and ultra-short background pulse, combined with the expected smallness of the rate of pair production.
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Dates et versions

hal-02484000, version 1 (19-02-2020)

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Scott James Robertson, Charles Ciret, Simon-Pierre Gorza, Serge Massar, Renaud Parentani. Analog Hawking Effect Enhanced by 4th-Order Dispersion Phase Matching. 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, Jun 2019, Munich, Germany. ⟨10.1109/CLEOE-EQEC.2019.8872726⟩. ⟨hal-02484000⟩
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