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Q: Fachverband Quantenoptik und Photonik
Q 18: Strong-Field and Ultrafast Phenomena (joint session Q/MO)
Q 18.2: Talk
Tuesday, March 11, 2025, 11:30–11:45, HS V
What does extreme nonlinear optics tell about black holes? — •Lorenzo M. Procopio1,2, Raul Aguero-Santacruz3, David Bermudez3, and Lorenzo Procopio2 — 1Department of Physics, Paderborn University, Warburger Str. 100, 33098 Paderborn, Germany — 2Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 761001, Israel — 3Department of Physics, Cinvestav, A.P. 14-740, 07000 Ciudad de Mexico, Mexico
In 1974, Hawking predicted that black holes should emit radiation. Seven years later, Unruh showed a mathematical analogy of the Hawking effect with sound waves in a fluid flow. Since then, several systems have emerged to demonstrate experimentally Hawking's predictions. Extreme nonlinear optics is a promising platform to study analog event horizons in photonic crystal fibers, where the event horizon is created with near-single-cycle light pulses. We experimentally studied the backreaction of Hawking radiation and present a more complete description of the Hawking process in fiber-optical analogues. For astrophysical black holes, this process would correspond to the mechanism of how Hawking radiation is made at the event horizon, how quanta of gravity produce quanta of radiation. In astrophysics, such a process is elusive and unknown, in extreme nonlinear fiber optics we believe to have observed it.
Keywords: Hawking radiation; photonic crystal fibers; near-single-cycle light pulses; fiber-optical analogues; extreme nonlinear optics