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Hawking radiation in an electro-magnetic wave-guide?

Ralf Schützhold·William G. Unruh
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Abstract

It is demonstrated that the propagation of electro-magnetic waves in an appropriately designed wave-guide is (for large wave-lengths) analogous to that within a curved space-time -- such as around a black hole. As electro-magnetic radiation (e.g., micro-weaves) can be controlled, amplified, and detected (with present-day technology) much easier than sound, for example, we propose a set-up for the experimental verification of the Hawking effect. Apart from experimentally testing this striking prediction, this would facilitate the investigation of the trans-Planckian problem. PACS: 04.70.Dy, 04.80.-y, 42.50.-p, 84.40.Az.

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Ralf Schützhold, William G. Unruh. 2004-12-22. Hawking radiation in an electro-magnetic wave-guide?. https://doi.org/10.1103/physrevlett.95.031301

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