Results 31 to 40 of about 372,041 (331)
Quantum computational supremacy [PDF]
Nature, 2017 review article originally appearing in a Nature Insight collection on "Quantum Software".
Harrow, Aram, Montanaro, Ashley
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Discriminating mixed qubit states with collective measurements
Communications Physics, 2023 It is a central fact in quantum mechanics that non-orthogonal states cannot be distinguished perfectly. In general, the optimal measurement for distinguishing such states is a collective measurement.
Lorcán O. Conlon +3 more
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Intrinsic Quantum Computation [PDF]
, 2006 We introduce ways to measure information storage in quantum systems, using a recently introduced computation-theoretic model that accounts for measurement effects. The first, the quantum excess entropy, quantifies the shared information between a quantum
Alicki +28 more
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Quantum Logic for Quantum Computers
International Journal of Theoretical Physics, 2000 The following results obtained within a project of finding algebra of states in a general purpose quantum computer are reported: 1. all operations of an orthomodular lattice, including the identity, are five-fold defined ; 2. there are non-orthomodular models for both quantum and classical logics ; 3.
Mladen Pavicic, Mladen Pavicic
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QUANTUM HOLONOMIES FOR QUANTUM COMPUTING [PDF]
International Journal of Modern Physics B, 2001 Holonomic Quantum Computation (HQC) is an all-geometrical approach to quantum information processing. In the HQC strategy information is encoded in degenerate eigen-spaces of a parametric family of Hamiltonians. The computational network of unitary quantum gates is realized by driving adiabatically the Hamiltonian parameters along loops in a control ...
Jiannis K. Pachos +2 more
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Mesoporous matrices for quantum computation with improved response through redundance [PDF]
, 2007 We present a solid state implementation of quantum computation, which improves previously proposed optically driven schemes. Our proposal is based on vertical arrays of quantum dots embedded in a mesoporous material which can be fabricated with present ...
D’Amico I. +5 more
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Relativistic Bohmian trajectories of photons via weak measurements
Nature Communications, 2022 Making Bohmian mechanics fully compatible with special relativity is still an ongoing challenge. Here, the authors make a further step in this direction by providing a way of constructing the relativistic Bohmian-type velocity field of single photons ...
Joshua Foo +3 more
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An Architecture of Deterministic Quantum Central Processing Unit [PDF]
, 2002 We present an architecture of QCPU(Quantum Central Processing Unit), based on the discrete quantum gate set, that can be programmed to approximate any n-qubit computation in a deterministic fashion.
Barenco +20 more
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Experimental optical phase measurement approaching the exact Heisenberg limit
Nature Communications, 2018 Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al.
Shakib Daryanoosh +4 more
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On the equivalence between squeezing and entanglement potential for two-mode Gaussian states
Scientific Reports, 2023 The maximum amount of entanglement achievable under passive transformations by continuous-variable states is called the entanglement potential. Recent work has demonstrated that the entanglement potential is upper-bounded by a simple function of the ...
Bohan Li +5 more
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