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 …

Roadmap on nanoscale magnetic resonance imaging

R Budakian, A Finkler, A Eichler, M Poggio… - …, 2024 - iopscience.iop.org
The field of nanoscale magnetic resonance imaging (NanoMRI) was started 30 years ago. It
was motivated by the desire to image single molecules and molecular assemblies, such as …

Real-time adaptive estimation of decoherence timescales for a single qubit

MJ Arshad, C Bekker, B Haylock, K Skrzypczak… - Physical Review …, 2024 - APS
Characterizing the time over which quantum coherence survives is critical for any
implementation of quantum bits, memories, and sensors. The usual method for determining …

Real-time frequency estimation of a qubit without single-shot-readout

I Zohar, B Haylock, Y Romach, MJ Arshad… - Quantum Science …, 2023 - iopscience.iop.org
Quantum sensors can potentially achieve the Heisenberg limit of sensitivity over a large
dynamic range using quantum algorithms. The adaptive phase estimation algorithm (PEA) is …

Applications of model-aware reinforcement learning in Bayesian quantum metrology

F Belliardo, F Zoratti, V Giovannetti - Physical Review A, 2024 - APS
An important practical problem in the field of quantum metrology and sensors is to find the
optimal sequences of controls for the quantum probe that realize optimal adaptive …

Maximizing information obtainable by quantum sensors through the quantum Zeno effect

B Ronchi, A Zwick, GA Álvarez - Physical Review Applied, 2024 - APS
Efficient quantum sensing technologies rely on the precise control of quantum sensors,
particularly two-level systems or qubits, to optimize estimation processes. We here exploit …

Model-aware reinforcement learning for high-performance Bayesian experimental design in quantum metrology

F Belliardo, F Zoratti, F Marquardt, V Giovannetti - Quantum, 2024 - quantum-journal.org
Quantum sensors offer control flexibility during estimation by allowing manipulation by the
experimenter across various parameters. For each sensing platform, pinpointing the optimal …

Quantum Metrology Assisted by Machine Learning

J Huang, M Zhuang, J Zhou, Y Shen… - Advanced Quantum …, 2024 - Wiley Online Library
Quantum metrology aims to measure physical quantities based on fundamental quantum
principles, enhancing measurement precision through resources like quantum …

Quantum model learning agent: characterisation of quantum systems through machine learning

B Flynn, AA Gentile, N Wiebe, R Santagati… - New Journal of …, 2022 - iopscience.iop.org
Accurate models of real quantum systems are important for investigating their behaviour, yet
are difficult to distil empirically. Here, we report an algorithm—the quantum model learning …

Breaking the Measurement-Sensitivity–Maximum-Range Limit of Quantum Metrology Using Two Sequences

Y Dong, C Feng, SC Zhang, Y Zheng, XD Chen… - Physical Review …, 2023 - APS
In precision measurement and quantum metrology, the 2 π periodicity inherent to any
interferometric signal sets a fundamental limit in the simultaneous achievement of both high …