Quantum Fisher information matrix and multiparameter estimation
Quantum Fisher information matrix (QFIM) is a core concept in theoretical quantum
metrology due to the significant importance of quantum Cramér–Rao bound in quantum …
metrology due to the significant importance of quantum Cramér–Rao bound in quantum …
Quantum-enhanced measurements without entanglement
Quantum-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …
sensitivity of measurements of certain physical parameters and have great potential for both …
[HTML][HTML] Photonic quantum metrology
Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …
aim of this research field is the estimation of unknown parameters exploiting quantum …
Quantum thermal machines and batteries
S Bhattacharjee, A Dutta - The European Physical Journal B, 2021 - Springer
The seminal work by Sadi Carnot in the early nineteenth century provided the blueprint of a
reversible heat engine and the celebrated second law of thermodynamics eventually …
reversible heat engine and the celebrated second law of thermodynamics eventually …
Geometry of quantum phase transitions
In this article we provide a review of geometrical methods employed in the analysis of
quantum phase transitions and non-equilibrium dissipative phase transitions. After a …
quantum phase transitions and non-equilibrium dissipative phase transitions. After a …
On quantumness in multi-parameter quantum estimation
In this article we derive a measure of quantumness in quantum multi-parameter estimation
problems. We can show that the ratio between the mean Uhlmann curvature and the Fisher …
problems. We can show that the ratio between the mean Uhlmann curvature and the Fisher …
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 …
the quantum regime is, without any doubt, essential for any potential application. In this …
Optimal cycles for low-dissipation heat engines
P Abiuso, M Perarnau-Llobet - Physical review letters, 2020 - APS
We consider the optimization of a finite-time Carnot engine characterized by small
dissipations. We bound the power with a simple inequality and show that the optimal …
dissipations. We bound the power with a simple inequality and show that the optimal …
Genuine quantum correlations in quantum many-body systems: a review of recent progress
G De Chiara, A Sanpera - Reports on Progress in Physics, 2018 - iopscience.iop.org
Quantum information theory has considerably helped in the understanding of quantum many-
body systems. The role of quantum correlations and in particular, bipartite entanglement …
body systems. The role of quantum correlations and in particular, bipartite entanglement …
Variational quantum algorithm for estimating the quantum fisher information
The quantum Fisher information (QFI) quantifies the ultimate precision of estimating a
parameter from a quantum state and can be regarded as a reliability measure of a quantum …
parameter from a quantum state and can be regarded as a reliability measure of a quantum …