Results 31 to 40 of about 41,273 (213)
EURAMET EMN-Q: The European metrology network for quantum technologies
Measurement: Sensors, 2021 The second quantum revolution is underway and the deployment of Quantum Technologies (QT) keeps pace with it. This technological paradigm-switch creates opportunities and challenges for industry, innovation and society.
Ivo Pietro Degiovanni +4 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
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Optimal adaptive control for quantum metrology with time-dependent Hamiltonians. [PDF]
Nat Commun, 2017 Pang S, Jordan AN.
europepmc +2 more sources
npj Quantum Information, 2022 The quantum Cramér–Rao bound sets a fundamental limit on the accuracy of unbiased parameter estimation in quantum systems, relating the uncertainty in determining a parameter to the inverse of the quantum Fisher information. We experimentally demonstrate
Min Yu +10 more
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Super-Heisenberg scaling in Hamiltonian parameter estimation in the long-range Kitaev chain
Physical Review Research, 2022 In quantum metrology, nonlinear many-body interactions can enhance the precision of Hamiltonian parameter estimation to surpass the Heisenberg scaling.
Jing Yang +3 more
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Temporal analog of Fabry-Pérot resonator via coherent population trapping
npj Quantum Information, 2021 Ramsey spectroscopy via coherent population trapping (CPT) is essential in precision measurements. The conventional CPT-Ramsey fringes contain numbers of almost identical oscillations and so that it is difficult to identify the central fringe.
Ruihuan Fang +8 more
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Quantum metrology and its application in biology [PDF]
, 2015 Quantum metrology provides a route to overcome practical limits in sensing devices. It holds particular relevance to biology, where sensitivity and resolution constraints restrict applications both in fundamental biophysics and in medicine.
Bowen, Warwick P., Taylor, Michael A.
core +1 more source
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
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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Quantum Metrology: Dynamics versus Entanglement [PDF]
Physical Review Letters, 2008 4 pages, 1 ...
Boixo, Sergio +5 more
openaire +4 more sources