2023
DOI: 10.1103/physreva.108.062421
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Invasiveness of nonequilibrium pure-dephasing quantum thermometry

Francesco Albarelli,
Matteo G. A. Paris,
Bassano Vacchini
et al.

Abstract: One of the main advantages expected from using quantum probes as thermometers is non invasiveness, i.e., a negligible perturbation to the thermal sample. However, invasiveness is rarely investigated explicitly. Here, focusing on a pure-dephasing spin probe in a bosonic sample, we show that there is a non-trivial relation between the information on the temperature gained by a quantum probe and the heat absorbed by the sample due to the interaction. We show that optimizing over the probing time, i.e. considering… Show more

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