Learning quantum systems

V Gebhart, R Santagati, AA Gentile, EM Gauger… - Nature Reviews …, 2023 - nature.com
The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …

Quantum metrology with nonclassical states of atomic ensembles

L Pezze, A Smerzi, MK Oberthaler, R Schmied… - Reviews of Modern …, 2018 - APS
Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

[HTML][HTML] Photonic quantum metrology

E Polino, M Valeri, N Spagnolo, F Sciarrino - AVS Quantum Science, 2020 - pubs.aip.org
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 …

Multi-parameter estimation beyond quantum Fisher information

R Demkowicz-Dobrzański, W Górecki… - Journal of Physics A …, 2020 - iopscience.iop.org
This review aims at gathering the most relevant quantum multi-parameter estimation
methods that go beyond the direct use of the quantum Fisher information concept. We …

Optimal and variational multiparameter quantum metrology and vector-field sensing

R Kaubruegger, A Shankar, DV Vasilyev, P Zoller - PRX Quantum, 2023 - APS
We study multiparameter sensing of two-dimensional (2D) and three-dimensional (3D)
vector fields within the Bayesian framework for SU (2) quantum interferometry. We establish …

Essay: Quantum Sensing with Atomic, Molecular, and Optical Platforms for Fundamental Physics

J Ye, P Zoller - Physical Review Letters, 2024 - APS
Atomic, molecular, and optical (AMO) physics has been at the forefront of the development of
quantum science while laying the foundation for modern technology. With the growing …

[HTML][HTML] Deep reinforcement learning for quantum multiparameter estimation

V Cimini, M Valeri, E Polino, S Piacentini… - Advanced …, 2023 - spiedigitallibrary.org
Estimation of physical quantities is at the core of most scientific research, and the use of
quantum devices promises to enhance its performances. In real scenarios, it is fundamental …

Critical quantum metrology assisted by real-time feedback control

R Salvia, M Mehboudi, M Perarnau-Llobet - Physical Review Letters, 2023 - APS
We investigate critical quantum metrology, that is, the estimation of parameters in many-
body systems close to a quantum critical point, through the lens of Bayesian inference …

Experimental multiparameter quantum metrology in adaptive regime

M Valeri, V Cimini, S Piacentini, F Ceccarelli… - Physical Review …, 2023 - APS
Relevant metrological scenarios involve the simultaneous estimation of multiple parameters.
The fundamental ingredient to achieve quantum-enhanced performance is based on the use …

Bayesian estimation for collisional thermometry

GO Alves, GT Landi - Physical Review A, 2022 - APS
Quantum thermometry exploits the high level of control in coherent devices to offer
enhanced precision for temperature estimation. This highlights the need for constructing …