Acoustic black holes in a two-dimensional "photon-fluid"

Details Acoustic black holes in a two-dimensional "photon-fluid" Acoustic black holes in a two-dimensional "photon-fluid"

2008-08-12

arxiv.org/abs/0808.1624v2

Phys. Rev. A 78, 063804 (2008)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

revised version

Scientific paper

10.1103/PhysRevA.78.063804

Optical field fluctuations in self-defocusing media can be described in terms of sound waves in a 2D photon-fluid. It is shown that, while the background fluid couples with the usual flat metric, sound-like waves experience an effective curved spacetime determined by the physical properties of the flow. In an optical cavity configuration, the background spacetime can be suitably controlled by the driving beam allowing the formation of acoustic ergoregions and event horizons. An experiment simulating the main features of the rotating black hole geometry is proposed.

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