Non-equilibrium readiness and accuracy of Gaussian Quantum Thermometers
Quantum Physics
2020-09-29 v1
Abstract
The dimensionality of a thermometer is key in the design of quantum thermometry schemes. In general, the phenomenology that is typical of finite-dimensional quantum thermometry does not apply to infinite dimensional ones. We analyse the dynamical and metrological features of non-equilibrium Gaussian Quantum Thermometers: on one hand, we highlight how quantum entanglement can enhance the readiness of composite Gaussian thermometers; on the other hand, we show that non-equilibrium conditions do not guarantee the best sensitivities in temperature estimation, thus suggesting the reassessment of the working principles of quantum thermometry.
Keywords
Cite
@article{arxiv.2005.02404,
title = {Non-equilibrium readiness and accuracy of Gaussian Quantum Thermometers},
author = {Luca Mancino and Marco G. Genoni and Marco Barbieri and Mauro Paternostro},
journal= {arXiv preprint arXiv:2005.02404},
year = {2020}
}