Results 71 to 80 of about 1,399,436 (192)
Measurement of Stokes-operator squeezing for continuous-variable orbital angular momentum
Scientific Reports, 2017 We demonstrate experimentally a measurement scheme for the Stokes operators for the continuous-variable squeezed states of orbital angular momentum (OAM).
Jun Guo +5 more
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Variational-state quantum metrology
New Journal of Physics, 2020 Abstract Quantum technologies exploit entanglement to enhance various tasks beyond their classical limits including computation, communication and measurements. Quantum metrology aims to increase the precision of a measured quantity that is estimated in the presence of statistical errors using entangled quantum states. We present a novel
Bálint Koczor +4 more
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Quantum State Smoothing for Linear Gaussian Systems
, 2019 Quantum state smoothing is a technique for assigning a valid quantum state to a partially observed dynamical system, using measurement records both prior and posterior to an estimation time.
Chantasri, Areeya +2 more
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International Review of Research in Open and Distributed Learning, 2011 This paper builds upon a foundational paper (under review) which explores the rudiments of the quantum perspective of learning. The quantum perspective of learning uses the principles of exchange theory or borrowed theory from the field of quantum holism
Katherine J. Janzen +2 more
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AIP Advances, 2021 Detailed understanding of the electronic energy transfer dynamics in conjugated polymer molecules and their conformation dependence is central for improving the photophysical properties as well as the performance of devices based on conjugated polymers ...
Ruiyun Chen +7 more
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Adaptive quantum state estimation for dynamic quantum states [PDF]
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017 We propose an adaptive quantum state estimation method for nonstationary quantum states and verify the method by numerical simulations and experimental investigations. Adaptive quantum state estimation provides an asymptotically optimal scheme for estimating an unknown input quantum state by updating the measurement configuration upon the detection of ...
Saki Nohara +3 more
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One-way quantum computing in superconducting circuits
, 2018 We propose a method for the implementation of one-way quantum computing in superconducting circuits. Measurement-based quantum computing is a universal quantum computation paradigm in which an initial cluster-state provides the quantum resource, while ...
Albarrán-Arriagada, F. +6 more
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Fiber-Amplifier-Enhanced QEPAS Sensor for Simultaneous Trace Gas Detection of NH3 and H2S
Sensors, 2015 A selective and sensitive quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplifier (EDFA), and a distributed feedback (DFB) laser operating at 1582 nm was demonstrated for simultaneous detection of ammonia (NH3)
Hongpeng Wu +8 more
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Applying Gaussian quantum discord to quantum key distribution
, 2014 In this paper, we theoretically prove that the Gaussian quantum discord state of optical field can be used to complete continuous variable (CV) quantum key distribution (QKD). The calculation shows that secret key can be distilled with a Gaussian quantum
Su, Xiaolong
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On the dynamics of the quantum states set for a system with degenerated Hamiltonian
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011 We study the sequence of regularizing Cauchy problem as the elliptic regularization of Cauchy problem for Schrodinger equation with discontinuous and degenerated coefficients. The necessary and sufficient conditions of the convergence of the regularizing
Vsevolod Zh Sakbaev
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