Quantum metrology with quantum-chaotic sensors [PDF]
Nature Communications, 2018 Enhanced sensing using quantum systems generally relies on preparation of highly non-classical states, such as entangled or squeezed states. Here the authors propose a different approach, based on hypersensitivity of quantum-chaotic dynamics with respect
Lukas J. Fiderer, Daniel Braun
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Distributed multi-parameter quantum metrology with a superconducting quantum network [PDF]
Nature CommunicationsQuantum metrology has emerged as a powerful tool for timekeeping, field sensing, and precision measurements in fundamental physics. With the advent of distributed quantum metrology, its capabilities have extended to probing spatially distributed ...
Jiajian Zhang +21 more
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Dissipative quantum metrology in manybody systems of identical particles
New Journal of Physics, 2014 Estimation of physical parameters is essential in almost any part of science and technology. The enhancement of performance in this task (e.g. beating the standard classical shot-noise limit) using available physical resources is a major goal in ...
F Benatti, S Alipour, A T Rezakhani
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Magnon squeezing in the quantum regime [PDF]
Nature CommunicationsSqueezed states, crucial for quantum metrology and emerging quantum technologies, have been demonstrated in various platforms, but quantum squeezing of magnons in macroscopic spin systems remains elusive.
Yuan-Chao Weng +10 more
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Experimental Advances in Phase Estimation with Photonic Quantum States [PDF]
EntropyPhotonic quantum metrology has emerged as a leading platform for quantum-enhanced precision measurements. By taking advantage of quantum resources such as entanglement, quantum metrology enables parameter estimation with sensitivities surpassing ...
Laura T. Knoll +2 more
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Adiabatic critical quantum metrology cannot reach the Heisenberg limit even when shortcuts to adiabaticity are applied [PDF]
Quantum, 2021 We show that the quantum Fisher information attained in an adiabatic approach to critical quantum metrology cannot lead to the Heisenberg limit of precision and therefore $regular$ quantum metrology under optimal settings is always superior. Furthermore,
Karol Gietka +3 more
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Understanding and Improving Critical Metrology. Quenching Superradiant Light-Matter Systems Beyond the Critical Point [PDF]
Quantum, 2022 We carefully examine critical metrology and present an improved critical quantum metrology protocol which relies on quenching a system exhibiting a superradiant quantum phase transition beyond its critical point. We show that this approach can lead to an
Karol Gietka, Lewis Ruks, Thomas Busch
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Quantum enhanced non-interferometric quantitative phase imaging
Light: Science & Applications, 2023 Quantum entanglement and squeezing have significantly improved phase estimation and imaging in interferometric settings beyond the classical limits.
Giuseppe Ortolano +7 more
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Experimental critical quantum metrology with the Heisenberg scaling
npj Quantum Information, 2021 Critical quantum metrology, which exploits quantum critical systems as probes to estimate a physical parameter, has gained increasing attention recently.
Ran Liu +8 more
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Steering-enhanced quantum metrology using superpositions of noisy phase shifts
Physical Review Research, 2023 Quantum steering is an important correlation in quantum information theory. A recent work [Nat. Commun. 12, 2410 (2021)NCAOBW2041-172310.1038/s41467-021-22353-3] showed that quantum steering is also useful for quantum metrology.
Kuan-Yi Lee +5 more
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