Results 51 to 60 of about 322,484 (286)
Floating point representations in quantum circuit synthesis
New Journal of Physics, 2013 We provide a non-deterministic quantum protocol that approximates the single qubit rotations R _x (2 ϕ ^2 _1 ϕ ^2 _2 ) using R _x (2 ϕ _1 ) and R _x (2 ϕ _2 ) and a constant number of Clifford and T operations.
Nathan Wiebe, Vadym Kliuchnikov
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Convergence theorems for quantum annealing [PDF]
, 2006 We prove several theorems to give sufficient conditions for convergence of quantum annealing, which is a protocol to solve generic optimization problems by quantum dynamics.
Aarts E +14 more
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Multiple Query Optimization on the D-Wave 2X Adiabatic Quantum Computer [PDF]
, 2015 The D-Wave adiabatic quantum annealer solves hard combinatorial optimization problems leveraging quantum physics. The newest version features over 1000 qubits and was released in August 2015.
Koch, Christoph, Trummer, Immanuel
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Optimized Quantum F-Divergences [PDF]
2018 IEEE International Symposium on Information Theory (ISIT), 2018 5 pages; shortened, more accessible version of arXiv:1710.10252; making publicly available due to public access mandate of US National Science Foundation and flag on Google ...
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Time-Optimal Quantum Evolution [PDF]
Physical Review Letters, 2006 We present a general framework for finding the time-optimal evolution and the optimal Hamiltonian for a quantum system with a given set of initial and final states. Our formulation is based on the variational principle and is analogous to that for the brachistochrone in classical mechanics. We reduce the problem to a formal equation for the Hamiltonian
Alberto Carlini +3 more
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Variational quantum non-orthogonal optimization
Scientific Reports, 2023 AbstractCurrent universal quantum computers have a limited number of noisy qubits. Because of this, it is difficult to use them to solve large-scale complex optimization problems. In this paper we tackle this issue by proposing a quantum optimization scheme where discrete classical variables are encoded in non-orthogonal states of the quantum system ...
Pablo Bermejo, Román Orús
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Bayesian Optimization for QAOA
IEEE Transactions on Quantum Engineering, 2023 The quantum approximate optimization algorithm (QAOA) adopts a hybrid quantum-classical approach to find approximate solutions to variational optimization problems.
Simone Tibaldi +3 more
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Entanglement Increases the Error-Correcting Ability of Quantum Error-Correcting Codes [PDF]
, 2010 If entanglement is available, the error-correcting ability of quantum codes can be increased. We show how to optimize the minimum distance of an entanglement-assisted quantum error-correcting (EAQEC) code, obtained by adding ebits to a standard quantum ...
Brun, Todd, Lai, Ching-Yi
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Quantum optimal control theory [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2007 The control of quantum dynamics via specially tailored laser pulses is a long-standing goal in physics and chemistry. Partly, this dream has come true, as sophisticated pulse shaping experiments allow to coherently control product ratios of chemical reactions. The theoretical design of the laser pulse to transfer an initial state to a given final state
Werschnik, J., Gross, E. K. U.
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Journal of Advanced Mechanical Design, Systems, and ManufacturingThis study delves into the automatic analog circuit design, focusing primarily on topology optimization. Many real-world calculations and evaluations often involve complex and nonlinear problems, posing significant challenges in optimization.
Masaharu HIDA +4 more
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