Activities per year
Abstract
Thermal phenomena in quantum field theory can be detected with the aid of particle detectors coupled to quantum fields along stationary worldlines, by testing whether the response of such a detector satisfies the detailed balance version of the KMS condition at a constant temperature. This relation holds when the interaction between the field and the detector has infinite time duration. Operationally, however, detectors interact with fields for a finite amount of time, controlled by a switching function of compact support, and the KMS detailed balance condition cannot hold exactly for finite time interactions at arbitrarily large detector energy gap. In this large energy gap regime, we show that, for an adiabatically switched Rindler detector, the Unruh temperature emerges asymptotically after the detector and the field have interacted for a time that is polynomially long in the large energy. We comment on the significance of the adiabaticity assumption in this result.
Original language  English 

Title of host publication  Proceedings of the Fourteenth Marcel Grossman Meeting on General Relativity 
Editors  M Bianchi, R T Jantzen, R Ruffini 
Publisher  Arxiv (Cornell University) 
Number of pages  6 
Publication status  Published  2015 
Activities
 1 Conference participation

Fourteenth Marcel Grossmann Meeting  MG14
Chris Fewster (Invited speaker)
12 Jul 2015 → 17 Jul 2015Activity: Participating in or organising an event › Conference participation