Measuring Unruh radiation from accelerated electrons

Gregori, G. and Marocco, G. and Sarkar, S. and Bingham, R. and Wang, C. (2024) Measuring Unruh radiation from accelerated electrons. European Physical Journal C, 84 (5). 475. ISSN 1434-6044 (

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Detecting thermal Unruh radiation from accelerated electrons has presented a formidable challenge due not only to technical difficulties but also for lack of conceptual clarity about what is actually seen by a laboratory observer. We give a summary of the current interpretations along with a simpler heuristic description that draws on the analogy between the Unruh effect and radiation from a two-level atomic system. We propose an experiment to test whether there is emission of thermal photons from an accelerated electron.