Hawking radiation from ultrashort laser pulse filaments

TL;DR

This paper demonstrates the experimental creation of a gravitational analogue using ultrashort laser pulse filaments, leading to the spontaneous emission of photons that confirms theoretical predictions of Hawking radiation.

Contribution

It provides the first experimental evidence of Hawking radiation analogue using laser filaments, bridging theory and laboratory observation.

Findings

Spontaneous photon emission observed in laser filament experiments

Confirmation of Hawking radiation analogue predictions

Advancement in laboratory simulation of astrophysical phenomena

Abstract

Event horizons of astrophysical black holes and gravitational analogues have been predicted to excite the quantum vacuum and give rise to the emission of quanta, known as Hawking radiation. We experimentally create such a gravitational analogue using ultrashort laser pulse filaments and our measurements demonstrate a spontaneous emission of photons that confirms theoretical predictions.