23–27 Jun 2025
Università degli Studi Federico II, Napoli
Europe/Rome timezone

Ambient temperature versus ambient acceleration in the circular motion Unruh effect

27 Jun 2025, 14:40
15m
1st floor, room 3 (University of Naples "Federico II")

1st floor, room 3

University of Naples "Federico II"

Corso Umberto I, 40 - 80138 Napoli (NA)

Speaker

Cameron Bunney (University of Nottingham)

Description

The Unruh effect asserts that the experience of uniformly linearly accelerated observer with proper acceleration a is indistinguishable from that of a static observer in a thermal bath whose temperature is given by T=a/(2π). This prediction of Minkowski quantum field theory continues to inspire both theoretical and experimental investigations. More generally, non-inertial trajectories—such as circular or drifted Rindler motion—yield a nonzero response to the vacuum, though the response is typically not thermal. In this talk, I examine the interplay between acceleration and ambient temperature by considering two scenarios: (i) a circularly orbiting observer in a thermal bath, and (ii) a circular trajectory around a uniformly accelerated path. These setups allow for a probe of the Unruh effect’s robustness under deviations from uniform acceleration. This work is based on Phys. Rev. D 109, 065001 (2024).

Author

Cameron Bunney (University of Nottingham)

Presentation materials

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