Results 11 to 20 of about 1,078,579 (226)
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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Quantum correlations for anonymous metrology [PDF]
Quantum, 2019 We introduce the task of anonymous metrology, in which a physical parameter of an object may be determined without revealing the object's location. Alice and Bob share a correlated quantum state, with which one of them probes the object.
A. J. Paige, Benjamin Yadin, M. S. Kim
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Photonic quantum metrology [PDF]
AVS Quantum Science, 2020 Quantum metrology is one of the most promising applications of quantum technologies. The aim of this research field is the estimation of unknown parameters exploiting quantum resources, whose application can lead to enhanced performances with respect to ...
Nicolò Spagnolo +3 more
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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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Contextual quantum metrology [PDF]
npj Quantum Information, 2023 We demonstrate that the contextuality of measurement selection can enhance the precision of quantum metrology with a simple linear optical experiment. Contextuality is a nonclassical property known as a resource for various quantum information processing
Jeongwoo Jae +4 more
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Physics OpenWe address the characterization of two-qubit gates, focusing on bounds to precision in the joint estimation of the three parameters that define their Cartan decomposition.
Gabriele Fazio +2 more
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Physical Review A, 2019 \ua9 2019 American Physical Society. Quantum metrology exploits quantum correlations in specially prepared entangled or other nonclassical states to perform measurements that exceed the standard quantum limit.
Clark LA, Beige A, Stokes A
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Parametric Amplification of Continuous-Variable Entangled State for Loss-Tolerant Quantum Distributed Sensing [PDF]
SensorsQuantum metrology exploits quantum states to achieve an estimation sensitivity beyond classical limits. In the continuous-variable (CV) regime, the squeezed state has been used to implement deterministic quantum sensing, but the quantum metrology ...
Sijin Li, Wei Wang
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Quantum Information Processing with Continuous Variables and Atomic Ensembles [PDF]
, 2011 Quantum information theory promises many advances in science and technology. This thesis presents three different results in quantum information theory. The first result addresses the theoretical foundations of quantum metrology.
Zwierz, Marcin
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Speed limit of quantum metrology. [PDF]
Sci Rep, 2023 AbstractQuantum metrology employs nonclassical systems to improve the sensitivity of measurements. The ultimate limit of this sensitivity is dictated by the quantum Cramér–Rao bound. On the other hand, the quantum speed limit bounds the speed of dynamics of any quantum process.
Maleki Y, Ahansaz B, Maleki A.
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