Results 21 to 30 of about 9,545 (228)
Critical Quantum Metrology in the Non-Linear Quantum Rabi Model. [PDF]
Entropy (Basel), 2022 The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits the analog of a second-order phase transition for vanishing mode frequency which allows for criticality-enhanced quantum metrology in a few-body system.
Ying ZJ, Felicetti S, Liu G, Braak D.
europepmc +2 more sources
Quantum metrology with imperfect measurements. [PDF]
Nat Commun, 2022 AbstractThe 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 firstly the notion of quantum Fisher information to account for noisy detection, and propose tractable methods allowing for its approximate evaluation. We then show that
Len YL +3 more
europepmc +7 more sources
Quantum Critical Metrology [PDF]
Physical Review Letters, 2018 4+3 pages; 3+2 ...
Frérot, Irénée, Roscilde, Tommaso
openaire +3 more sources
Quantum advantage in postselected metrology [PDF]
Nature Communications, 2020 AbstractIn every parameter-estimation experiment, the final measurement or the postprocessing incurs a cost. Postselection can improve the rate of Fisher information (the average information learned about an unknown parameter from a trial) to cost. We show that this improvement stems from the negativity of a particular quasiprobability distribution, a ...
Arvidsson-Shukur, David R. M. +5 more
openaire +6 more sources
Improving metrology with quantum scrambling
Science, 2023 Quantum scrambling describes the spreading of information into many degrees of freedom in quantum systems, such that the information is no longer accessible locally but becomes distributed throughout the system. This idea can explain how quantum systems become classical and acquire a finite temperature, or how in black holes the information about the ...
Zeyang Li +9 more
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Quantum interferometric metrology with entangled photons
Frontiers in Physics, 2022 Quantum interferences of entangled photons have engendered tremendous intriguing phenomena that lack any counterpart in classical physics. Hitherto, owing to the salient properties of quantum optics, quantum interference has been widely studied and ...
Yuanyuan Chen, Ling Hong, Lixiang Chen
doaj +1 more source
Thermodynamic Principle for Quantum Metrology
Physical Review Letters, 2022 The heat dissipation in quantum metrology represents not only an unavoidable problem towards practical applications of quantum sensing devices but also a fundamental relationship between thermodynamics and quantum metrology. However, a general thermodynamic principle which governs the rule of energy consumption in quantum metrology, similar to Landauer'
Yaoming Chu, Jianming Cai
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phockett/Quantum-Metrology-with-Photoelectrons-Vol3: v261023 post-proofing
, 2023 <p>Minor updates and corrections after proofing, with improved PDF layout and HTML debug.</p> <p>Build as currently deployed to GH pages (https://phockett.github.io/Quantum-Metrology-with-Photoelectrons-Vol3)</p> <h2>What's ...
actions-user, Paul Hockett
core +1 more source
phockett/Quantum-Metrology-with-Photoelectrons-Vol3: v261023 post-proofing HTML deploy
, 2023 <p>Source from GH pages HTML & PDF build and deploy, matches source https://github.com/phockett/Quantum-Metrology-with-Photoelectrons-Vol3/releases/tag/v261023.</p><p>Build as currently deployed to GH pages (<a href="https ...
actions-user, Paul Hockett
core +1 more source
, 2023 This release with Docker build additions and minor updates. Full build otherwise as per previous release https://github.com/phockett/Quantum-Metrology-with-Photoelectrons-Vol3/releases/tag/v310723pm Now linked to Zenodo archive.
actions-user, Paul Hockett
core +1 more source