Thermometry in the quantum regime: recent theoretical progress

M Mehboudi, A Sanpera… - Journal of Physics A …, 2019 - iopscience.iop.org
Controlling and measuring the temperature in different devices and platforms that operate in
the quantum regime is, without any doubt, essential for any potential application. In this …

Multispin probes for thermometry in the strong-coupling regime

M Brenes, D Segal - Physical Review A, 2023 - APS
We study the sensitivity of thermometric probes that are composed of N spins coupled to a
sample prepared at temperature T. Our analysis extends beyond the weak-coupling limit into …

Thermometry of strongly correlated fermionic quantum systems using impurity probes

G Mihailescu, S Campbell, AK Mitchell - Physical Review A, 2023 - APS
We study quantum-impurity models as a platform for quantum thermometry. A single
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …

Global quantum thermometry

J Rubio, J Anders, LA Correa - Physical review letters, 2021 - APS
A paradigm shift in quantum thermometry is proposed. To date, thermometry has relied on
local estimation, which is useful to reduce statistical fluctuations once the temperature is very …

Collisional quantum thermometry

S Seah, S Nimmrichter, D Grimmer, JP Santos… - Physical review …, 2019 - APS
We introduce a general framework for thermometry based on collisional models, where
ancillas probe the temperature of the environment through an intermediary system. This …

Quantum thermal machine as a thermometer

PP Hofer, JB Brask, M Perarnau-Llobet, N Brunner - Physical review letters, 2017 - APS
We propose the use of a quantum thermal machine for low-temperature thermometry. A hot
thermal reservoir coupled to the machine allows for simultaneously cooling the sample while …

Subnanokelvin thermometry of an interacting -dimensional homogeneous Bose gas

MM Khan, M Mehboudi, H Terças, M Lewenstein… - Physical Review …, 2022 - APS
We propose experimentally feasible means for nondestructive thermometry of
homogeneous Bose-Einstein condensates in different spatial dimensions (d∈{1, 2, 3}). Our …

Quantum metrology and sensing with many-body systems

V Montenegro, C Mukhopadhyay, R Yousefjani… - arxiv preprint arxiv …, 2024 - arxiv.org
The main power of quantum sensors is achieved when the probe is composed of several
particles. In this situation, quantum features such as entanglement contribute in enhancing …

Optimal probes for global quantum thermometry

WK Mok, K Bharti, LC Kwek, A Bayat - Communications physics, 2021 - nature.com
Quantum thermodynamics has emerged as a separate sub-discipline, revising the concepts
and laws of thermodynamics, at the quantum scale. In particular, there has been a disruptive …

Fundamental limits in Bayesian thermometry and attainability via adaptive strategies

M Mehboudi, MR Jørgensen, S Seah, JB Brask… - Physical Review Letters, 2022 - APS
We investigate the limits of thermometry using quantum probes at thermal equilibrium within
the Bayesian approach. We consider the possibility of engineering interactions between the …