Search Results - "Tsang, Mankei"
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Subdiffraction incoherent optical imaging via spatial-mode demultiplexing
Published in New journal of physics (28-02-2017)“…I propose a spatial-mode demultiplexing (SPADE) measurement scheme for the far-field imaging of spatially incoherent optical sources. For any object too small…”
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Quantum metrology with open dynamical systems
Published in New journal of physics (02-07-2013)“…This paper studies quantum limits to dynamical sensors in the presence of decoherence. A modified purification approach is used to obtain tighter quantum…”
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Far-Field Superresolution of Thermal Electromagnetic Sources at the Quantum Limit
Published in Physical review letters (04-11-2016)“…We obtain the ultimate quantum limit for estimating the transverse separation of two thermal point sources using a given imaging system with limited spatial…”
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Quantum imaging beyond the diffraction limit by optical centroid measurements
Published in Physical review letters (26-06-2009)“…I propose a quantum imaging method that can beat the Rayleigh-Abbe diffraction limit and achieve de Broglie resolution without requiring a multiphoton absorber…”
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Quantum nonlocality in weak-thermal-light interferometry
Published in Physical review letters (30-12-2011)“…In astronomy, interferometry of light collected by separate telescopes is often performed by physically bringing the optical paths together in the form of…”
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Semiparametric estimation for incoherent optical imaging
Published in Physical review research (02-10-2019)“…The theory of semiparametric estimation offers an elegant way of computing the Cramér-Rao bound for a parameter of interest in the midst of infinitely many…”
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Interferometric superlocalization of two incoherent optical point sources
Published in Optics express (22-02-2016)“…A novel interferometric method - SLIVER (Super Localization by Image inVERsion interferometry) - is proposed for estimating the separation of two incoherent…”
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Operational meanings of a generalized conditional expectation in quantum metrology
Published in Quantum (Vienna, Austria) (03-11-2023)“…A unifying formalism of generalized conditional expectations (GCEs) for quantum mechanics has recently emerged, but its physical implications regarding the…”
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Poisson Quantum Information
Published in Quantum (Vienna, Austria) (01-08-2021)“…By taking a Poisson limit for a sequence of rare quantum objects, I derive simple formulas for the Uhlmann fidelity, the quantum Chernoff quantity, the…”
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Quantum Theory of Superresolution for Two Incoherent Optical Point Sources
Published in Physical review. X (29-08-2016)“…Rayleigh’s criterion for resolving two incoherent point sources has been the most influential measure of optical imaging resolution for over a century. In the…”
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Quantum Semiparametric Estimation
Published in Physical review. X (01-07-2020)“…In the study of quantum limits to parameter estimation, the high dimensionality of the density operator and that of the unknown parameters have long been two…”
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Evading Quantum Mechanics: Engineering a Classical Subsystem within a Quantum Environment
Published in Physical review. X (10-09-2012)“…Quantum mechanics is potentially advantageous for certain information-processing tasks, but its probabilistic nature and requirement of measurement backaction…”
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Fundamental Quantum Limit to Waveform Estimation
Published in Physical review letters (03-03-2011)Get full text
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Rib Microring Resonators in Lithium Niobate on Insulator
Published in IEEE photonics technology letters (01-03-2016)“…Rib microring resonators were fabricated via electron beam lithography and ion milling in lithium niobate on insulator (LNOI). LNOI is a single crystalline…”
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Resolving starlight: a quantum perspective
Published in Contemporary physics (02-10-2019)“…The wave-particle duality of light introduces two fundamental problems to imaging, namely, the diffraction limit and the photon shot noise. Quantum information…”
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Optomechanical parameter estimation
Published in New journal of physics (28-10-2013)“…We propose a statistical framework for the problem of parameter estimation from a noisy optomechanical system. The Cramér-Rao lower bound on the estimation…”
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17
Ziv-Zakai error bounds for quantum parameter estimation
Published in Physical review letters (08-06-2012)“…I propose quantum versions of the Ziv-Zakai bounds as alternatives to the widely used quantum Cramér-Rao bounds for quantum parameter estimation. From a simple…”
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18
Quantum Bell-Ziv-Zakai Bounds and Heisenberg Limits for Waveform Estimation
Published in Physical review. X (01-08-2015)“…We propose quantum versions of the Bell-Ziv-Zakai lower bounds for the error in multiparameter estimation. As an application, we consider measurement of a…”
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Efficient Superoscillation Measurement for Incoherent Optical Imaging
Published in IEEE journal of selected topics in signal processing (01-03-2023)“…I propose a superoscillation measurement method for subdiffraction incoherent optical sources, with potential applications in astronomy, remote sensing,…”
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Time-symmetric quantum theory of smoothing
Published in Physical review letters (26-06-2009)“…Smoothing is an estimation technique that takes into account both past and future observations and can be more accurate than filtering alone. In this Letter, a…”
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