Multispin probes for thermometry in the strong-coupling regime
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 …
sample prepared at temperature T. Our analysis extends beyond the weak-coupling limit into …
Fundamental limits in Bayesian thermometry and attainability via adaptive strategies
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 …
the Bayesian approach. We consider the possibility of engineering interactions between the …
[HTML][HTML] Quantum metrology with imperfect measurements
The impact of measurement imperfections on quantum metrology protocols has not been
approached in a systematic manner so far. In this work, we tackle this issue by generalising …
approached in a systematic manner so far. In this work, we tackle this issue by generalising …
Strongly coupled fermionic probe for nonequilibrium thermometry
RR Rodríguez, M Mehboudi, M Horodecki… - New Journal of …, 2024 - iopscience.iop.org
We characterise the measurement sensitivity, quantified by the quantum Fisher information
(QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a …
(QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a …
Fisher information of correlated stochastic processes
Many real-world tasks include some kind of parameter estimation, ie the determination of a
parameter encoded in a probability distribution. Often, such probability distributions arise …
parameter encoded in a probability distribution. Often, such probability distributions arise …
Uninformed Bayesian quantum thermometry
We study the Bayesian approach to thermometry with no prior knowledge about the
expected temperature scale, through the example of energy measurements on fully or …
expected temperature scale, through the example of energy measurements on fully or …
Non-Markovian enhanced temperature sensing in a dipolar Bose-Einstein condensate
L Xu, JB Yuan, SQ Tang, W Wu, QS Tan, LM Kuang - Physical Review A, 2023 - APS
We present a method for implementing quantum temperature sensing for extremely low
temperatures in a quasi-1D dipolar Bose-Einstein condensate reservoir with a magnetic field …
temperatures in a quasi-1D dipolar Bose-Einstein condensate reservoir with a magnetic field …
Non-Markovian temperature sensing
ZZ Zhang, W Wu - Physical Review Research, 2021 - APS
We investigate the sensing performance of a single-qubit quantum thermometer within a non-
Markovian dynamical framework. By employing an exactly numerical hierarchical equations …
Markovian dynamical framework. By employing an exactly numerical hierarchical equations …
Thermometry by correlated dephasing of impurities in a one-dimensional Fermi gas
S Brattegard, MT Mitchison - Physical Review A, 2024 - APS
We theoretically investigate the pure dephasing dynamics of two static impurity qubits
embedded within a common environment of ultracold fermionic atoms, which are confined to …
embedded within a common environment of ultracold fermionic atoms, which are confined to …
Thermometry of Gaussian quantum systems using Gaussian measurements
We study the problem of estimating the temperature of Gaussian systems with feasible
measurements, namely Gaussian and photo-detection-like measurements. For Gaussian …
measurements, namely Gaussian and photo-detection-like measurements. For Gaussian …