EU2 - Quantum Fields |
Speaker |
Verch, Rainer |
Coauthors |
Detlev Buchholz |
Talk Title |
The Heat of Acceleration - Unruh vs Tolman |
Abstract |
The vacuum state of a quantum field in Minkowski spacetime is spatially homogeneous. This implies that the local physical temperature of any thermometer-observable in the sense of the Tolman-Ehrenfest law must everywhere be zero in the inertial vacuum state. Therefore, the Unruh effect, i.e. the temperature increase indicated by a uniformly accelerated detector system coupled to a quantum field in its inertial vacuum state, cannot be interpreted in the sense of a heat bath surrounding the detector, i.e. as the result of purely the transfer of heat to the detector system. The increase of temperature of the accelerated detector system is due to systematic quantum effects induced by the local coupling between detector and quantum field, whereby not only heat but also work is exchanged. The talk is based on a joint article with Detlev Buchholz, see arXiv:1505.01686[gr-qc]. |
Talk view |
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