Information flow-enhanced precision in collisional quantum thermometry

Fuente: arXiv
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Auteurs principaux: Mendonça, Taysa M., Soares-Pinto, Diogo O., Paternostro, Mauro
Format: Preprint
Publié: 2024
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author Mendonça, Taysa M.
Soares-Pinto, Diogo O.
Paternostro, Mauro
author_facet Mendonça, Taysa M.
Soares-Pinto, Diogo O.
Paternostro, Mauro
contents We describe and analyze a quantum thermometer based on a multilayered collisional model. We propose a qubit system whose architecture provides significant sensitivity even for short interaction times between the ancillae that compose the thermometer probe and the system to be probed. The assessment of the flow of information taking place within the layered thermometer and between system and thermometer reveals that the tuning of the mutual backflow of information has a positive influence on the precision of thermometry, and helps unveiling the information-theoretic mechanisms behind the working principles of the proposed architecture.
format Preprint
id arxiv_https___arxiv_org_abs_2407_21618
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Information flow-enhanced precision in collisional quantum thermometry
Mendonça, Taysa M.
Soares-Pinto, Diogo O.
Paternostro, Mauro
Quantum Physics
We describe and analyze a quantum thermometer based on a multilayered collisional model. We propose a qubit system whose architecture provides significant sensitivity even for short interaction times between the ancillae that compose the thermometer probe and the system to be probed. The assessment of the flow of information taking place within the layered thermometer and between system and thermometer reveals that the tuning of the mutual backflow of information has a positive influence on the precision of thermometry, and helps unveiling the information-theoretic mechanisms behind the working principles of the proposed architecture.
title Information flow-enhanced precision in collisional quantum thermometry
topic Quantum Physics
url https://arxiv.org/abs/2407.21618