Results 31 to 40 of about 17,439,974 (328)
Classically-controlled Quantum Computation [PDF]
Electronic Notes in Theoretical Computer Science, 2006 20 ...
Perdrix, Simon, Jorrand, Philippe
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Doubly Geometric Quantum Control [PDF]
PRX Quantum, 2021 In holonomic quantum computation, single-qubit gates are performed using driving protocols that trace out closed loops on the Bloch sphere, making them robust to certain pulse errors. However, dephasing noise that is transverse to the drive, which is significant in many qubit platforms, lies outside the family of correctable errors.
Wenzheng Dong +3 more
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CONTROL OF QUANTUM SYSTEMS [PDF]
International Journal of Modern Physics B, 2002 A quantum system subject to external fields is said to be controllable if these fields can be adjusted to guide the state vector to a desired destination in the state space of the system. Fundamental results on controllability are reviewed against the background of recent ideas and advances in two seemingly disparate endeavours: (i) laser control of ...
Clark, John W. +2 more
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Transparent qubit manipulations with spin-orbit coupled two-electron nanowire quantum dot
Scientific Reports, 2021 We report on the first set of exact orthonormalized states to an ac driven one-dimensional (1D) two-electron nanowire quantum dot with the Rashba–Dresselhaus coexisted spin-orbit coupling (SOC) and the controlled magnetic field orientation and trapping ...
Kuo Hai +3 more
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Coherent quantum control of nitrogen-vacancy center spins near 1000 kelvin. [PDF]
Nat Commun, 2019 Quantum coherence control usually requires low temperature environments. Even for nitrogen-vacancy center spins in diamond, a remarkable exception, the coherence signal is limited to about 700 K due to the quench of the spin-dependent fluorescence at a ...
Liu GQ, Feng X, Wang N, Li Q, Liu RB.
europepmc +3 more sources
Quantum control theory and applications: A survey [PDF]
, 2010 This paper presents a survey on quantum control theory and applications from a control systems perspective. Some of the basic concepts and main developments (including open-loop control and closed-loop control) in quantum control theory are reviewed.
Belavkin +20 more
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Feedback control of quantum state reduction [PDF]
, 2004 Feedback control of quantum mechanical systems must take into account the probabilistic nature of quantum measurement. We formulate quantum feedback control as a problem of stochastic nonlinear control by considering separately a quantum filtering ...
Mabuchi, Hideo +2 more
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Voice-controlled quantum chemistry [PDF]
Nature Computational Science, 2021 Over the past decade, artificial intelligence has been propelled forward by advances in machine learning algorithms and computational hardware, opening up myriads of new avenues for scientific research. Nevertheless, virtual assistants and voice control have yet to be widely used in the natural sciences.
Umberto Raucci +5 more
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Efficient experimental quantum fingerprinting with channel multiplexing and simultaneous detection
Nature Communications, 2021 Quantum fingerprinting could allow an exponential quantum advantage in a cryptographic protocol, but current schemes are still difficult to scale. Here, the authors exploit wavelength division multiplexing to increase the channel capacity and reduce the ...
Xiaoqing Zhong +3 more
doaj +1 more source
A differentiable programming method for quantum control [PDF]
Machine Learning: Science and Technology, 2020 Optimal control is highly desirable in many current quantum systems, especially to realize tasks in quantum information processing. We introduce a method based on differentiable programming to leverage explicit knowledge of the differential equations ...
F. Schäfer +3 more
semanticscholar +1 more source