Relativistic quantum thermometry through a moving sensor

Hossein Rangani Jahromi; Samira Ebrahimi Asl Mamaghani; Rosario Lo Franco

doi:10.1016/j.aop.2022.169172

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arXiv · 2208.04431

Relativistic quantum thermometry through a moving sensor

Hossein Rangani Jahromi·Samira Ebrahimi Asl Mamaghani·Rosario Lo Franco

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Abstract

Using a two-level moving probe, we address the temperature estimation of a static thermal bath modeled by a massless scalar field prepared in a thermal state. Different couplings of the probe to the field are discussed under various scenarios. We find that the thermometry is completely unaffected by the Lamb shift of the energy levels. We take into account the roles of probe velocity, its initial preparation, and environmental control parameters for achieving optimal temperature estimation. We show that a practical technique can be utilized to implement such a quantum thermometry. Finally, exploiting the thermal sensor moving at high velocity to probe temperature within a multiparameter-estimation strategy, we demonstrate perfect supremacy of the joint estimation over the individual one.

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BibTeX RIS

Hossein Rangani Jahromi, Samira Ebrahimi Asl Mamaghani, Rosario Lo Franco. 2022-08-08. Relativistic quantum thermometry through a moving sensor. https://doi.org/10.1016/j.aop.2022.169172

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