Laboratory soft x-ray emission due to the Hawking-Unruh effect?

Abstract

The structure of spacetime, quantum field theory, and thermodynamics are all connected through the concepts of the Hawking and Unruh temperatures. The possible detection of the related radiation constitutes a fundamental test of such subtle connections. Here a scheme is presented for the detection of Unruh radiation based on currently available laser systems. By separating the classical radiation from the Unruh-response in frequency space, it is found that the detection of Unruh radiation is possible in terms of soft x-ray photons using current laser-electron beam technology. The experimental constraints are discussed and a proposal for an experimental design is given.

arXiv comment11 pages, 3 figures, 1 table

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• Correlated two-photon emission by transitions of Dirac-Volkov states in intense laser fields: QED predictions
• Resonance interaction energy between two accelerated identical atoms in a coaccelerated frame and the Unruh effect
• On the possibility of measuring the Unruh effect
• A proposal for testing subcritical vacuum pair production with high power lasers
• Classical Larmor formula through the Unruh effect for uniformly accelerated electrons
• Thermality from a Rindler quench
• Limits to the observation of the Unruh radiation via first-quantized hydrogen-like atoms