Analogue Hawking radiation in nonlinear quantum optics

TL;DR

This paper reviews the creation and observation of analogue Hawking radiation in nonlinear quantum optics systems, particularly fiber-optical setups, highlighting theoretical foundations and experimental progress.

Contribution

It provides a comprehensive overview of the theoretical concepts and experimental efforts in observing analogue Hawking radiation in nonlinear quantum optical systems.

Findings

Successful realization of analogue Hawking radiation in fiber-optical systems

Theoretical framework connecting gravitational analogy with nonlinear optics

Key experiments demonstrating Hawking-like emission in optical fibers

Abstract

The Hawking effect can be understood as a broad kinematic phenomenon associated with mode behavior near a horizon. While astrophysical black holes produce one specific realization of this radiation, this perspective inspires extensive theoretical and experimental efforts to create event horizons in diverse physical systems to observe the resulting analogue Hawking emission. One of the most successful realizations is the fiber-optical analogue, based on nonlinear quantum optics. In these notes, we introduce and motivate this system while outlining the theoretical concepts underlying the gravitational analogy. Finally, we review key experiments and discuss their impact on the field.