Review of the applications of Kalman filtering in quantum systems

K Ma, J Kong, Y Wang, XM Lu - Symmetry, 2022 - mdpi.com
State variable and parameter estimations are important for signal sensing and feedback
control in both traditional engineering systems and quantum systems. The Kalman filter …

Real-time quantum control of spin-coupling damping and application in atomic spin gyroscopes

H Pei, L Duan, L Ma, S Fan, Z Cai, Z Wu, W Fan… - Cell Reports Physical …, 2024 - cell.com
Integrating classical estimation and control theory with quantum systems holds potential for
quantum measurement improvement. Here, we report a real-time linear quadratic regulator …

[HTML][HTML] A pedagogical introduction to continuously monitored quantum systems and measurement-based feedback

F Albarelli, MG Genoni - Physics Letters A, 2024 - Elsevier
In this manuscript we present a pedagogical introduction to continuously monitored quantum
systems. We start by giving a simplified derivation of the Markovian master equation in …

Probe thermometry with continuous measurements

J Boeyens, B Annby-Andersson… - New Journal of …, 2023 - iopscience.iop.org
Temperature estimation plays a vital role across natural sciences. A standard approach is
provided by probe thermometry, where a probe is brought into contact with the sample and …

Interspecies spin-noise correlations in hot atomic vapors

K Mouloudakis, F Vouzinas, A Margaritakis… - Physical Review A, 2023 - APS
We report an experimental and theoretical study of spin-noise correlations in a Rb 87-Cs
133 unpolarized alkali-metal vapor dominated by spin-exchange collisions. We observe …

Optically pumped magnetometer with high spatial resolution magnetic guide for the detection of magnetic droplets in a microfluidic channel

M Jofre, J Romeu, L Jofre-Roca - New Journal of Physics, 2023 - iopscience.iop.org
Quantum sensors provide unprecedented magnetic field detection sensitivities, enabling
these to extend the common magnetometry range of applications and environments of …

Analysis of spin-squeezing generation in cavity-coupled atomic ensembles with continuous measurements

A Caprotti, M Barbiero, MG Tarallo… - Quantum Science …, 2024 - iopscience.iop.org
We analyze the generation of spin-squeezed states via coupling of three-level atoms to an
optical cavity and continuous quantum measurement of the transmitted cavity field in order to …

Harnessing center-of-mass excitations in quantum metrology

K Gietka - Physical Review Research, 2022 - APS
In quantum metrology, one typically creates correlations among atoms or photons to
enhance measurement precision. Here, we show how one can use other excitations to …

Parameter estimation for quantum jump unraveling

M Radaelli, JA Smiga, GT Landi, FC Binder - arXiv preprint arXiv …, 2024 - arxiv.org
We consider the estimation of parameters encoded in the measurement record of a
continuously monitored quantum system in the jump unraveling. This unraveling picture …

Parameter estimation from quantum-jump data using neural networks

E Rinaldi, MG Lastre, SG Herreros… - Quantum Science …, 2024 - iopscience.iop.org
We present an inference method utilizing artificial neural networks for parameter estimation
of a quantum probe monitored through a single continuous measurement. Unlike existing …