Energy measurements remain thermometrically optimal beyond weak coupling

Quantum 7, 1190 (2023) We develop a general perturbative theory of finite-coupling quantum thermometry up to second order in probe-sample interaction. By assumption, the probe and sample are in thermal equilibrium, so the probe is described by the mean-force Gibbs state. We prove that the ultimate t...

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Bibliographic Details

Main Authors:	Glatthard, Jonas, Hovhannisyan, Karen V, Perarnau-Llobet, Martí, Correa, Luis A, Miller, Harry J. D
Format:	Journal Article
Language:	English
Published:	24-11-2023
Subjects:	Physics - Quantum Physics Physics - Statistical Mechanics
Online Access:	Get full text
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