Schematic illustration of the proposed Unruh detector (IMAGE)

Hiroshima University

Schematic illustration of the proposed Unruh detector

Caption

A circulating fluxon–antifluxon pair in coupled annular Josephson junctions behaves as a detector. The pair decays due to Unruh-induced fluctuations, and the resulting event is observed as a voltage jump. By measuring the distribution of the corresponding switching currents, the Unruh effect can be detected.

Credit

Haruna Katayama and Noriyuki Hatakenaka, Hiroshima University

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