Hawking radiation in an electromagnetic waveguide?
It is demonstrated that the propagation of electromagnetic waves in an appropriately designed waveguide is (for large wavelengths) analogous to that within a curved space-time--such as around a black hole. As electromagnetic radiation (e.g., microwaves) can be controlled, amplified, and detected (with present-day technology) much easier than sound, for example, we propose a setup 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.
Schützhold
Ralf
R
Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany. schuetz@theory.phy.tu-dresden.de
Unruh
William G
WG