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.

Rangani Jahromi H., Ebrahimi Aslmamaghani S., Lo Franco R. (2023). Relativistic quantum thermometry through a moving sensor. ANNALS OF PHYSICS, 448, 1-21 [10.1016/j.aop.2022.169172].

Relativistic quantum thermometry through a moving sensor

Ebrahimi Aslmamaghani S.
Secondo
Formal Analysis
;
Lo Franco R.
Ultimo
Supervision
2023-01-01

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.
Settore FIS/03 - Fisica Della Materia
https://www.sciencedirect.com/science/article/pii/S0003491622002743
Rangani Jahromi H., Ebrahimi Aslmamaghani S., Lo Franco R. (2023). Relativistic quantum thermometry through a moving sensor. ANNALS OF PHYSICS, 448, 1-21 [10.1016/j.aop.2022.169172].
File in questo prodotto:
File Dimensione Formato  
1-s2.0-S0003491622002743-published.pdf

Solo gestori archvio

Descrizione: Articolo principale
Tipologia: Versione Editoriale
Dimensione 985.72 kB
Formato Adobe PDF
985.72 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/578191
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact