Temperature of a Decoherent Oscillator with Strong Coupling
Quantum Physics
2015-05-30 v1
Abstract
The temperature of an oscillator coupled to the vacuum state of a heat bath via ohmic coupling is non-zero, as measured by the reduced density matrix of the oscillator. This paper shows that the actual temperature, as measured by a thermometer is still zero (or in the thermal state of the bath, the temperature of the bath). The decoherence temperature is due to "false-decoherence", with the heat bath state being dragged along with the oscillator.
Keywords
Cite
@article{arxiv.1110.2217,
title = {Temperature of a Decoherent Oscillator with Strong Coupling},
author = {William G. Unruh},
journal= {arXiv preprint arXiv:1110.2217},
year = {2015}
}
Comments
6 pages