Results 31 to 40 of about 74,156 (167)

Exploiting Symmetry Reduces the Cost of Training QAOA

open access: yesIEEE Transactions on Quantum Engineering, 2021
A promising approach to the practical application of the quantum approximate optimization algorithm (QAOA) is finding QAOA parameters classically in simulation and sampling the solutions from QAOA with optimized parameters on a quantum computer. Doing so
Ruslan Shaydulin, Stefan M. Wild
doaj   +1 more source

Training a quantum optimizer

open access: yesPhysical Review A, 2016
We study a variant of the quantum approximate optimization algorithm [ E. Farhi, J. Goldstone, and S. Gutmann, arXiv:1411.4028] with slightly different parametrization and different objective: rather than looking for a state which approximately solves an optimization problem, our goal is to find a quantum algorithm that, given an instance of MAX-2-SAT,
Wecker, D., Hastings, M. B., Troyer, M.
openaire   +3 more sources

Time-Optimal Quantum Evolution [PDF]

open access: yesPhysical 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
CARLINI, ALBERTO   +3 more
openaire   +8 more sources

Topology optimization of analog circuit design via global optimization using factorization machines with digital annealer

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
This 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
doaj   +1 more source

NP-hard but no longer hard to solve? Using quantum computing to tackle optimization problems

open access: yesFrontiers in Quantum Science and Technology, 2023
In the last decade, public and industrial research funding has moved quantum computing from the early promises of Shor’s algorithm through experiments to the era of noisy intermediate scale quantum devices (NISQ) for solving real-world problems.
Rhonda Au-Yeung   +2 more
doaj   +1 more source

Multilayer Optimization for the Quantum Internet [PDF]

open access: yesScientific Reports, 2018
AbstractWe define a multilayer optimization method for the quantum Internet. Multilayer optimization integrates separate procedures for the optimization of the quantum layer and the classical layer of the quantum Internet. The multilayer optimization procedure defines advanced techniques for the optimization of the layers.
Gyongyosi, Laszlo, Imre, Sandor
openaire   +5 more sources

QGOpt: Riemannian optimization for quantum technologies

open access: yesSciPost Physics, 2021
Many theoretical problems in quantum technology can be formulated and addressed as constrained optimization problems. The most common quantum mechanical constraints such as, e.g., orthogonality of isometric and unitary matrices, CPTP property of ...
Ilia A. Luchnikov, Alexander Ryzhov, Sergey N. Filippov, Henni Ouerdane
doaj   +1 more source

Optimal Blind Quantum Computation [PDF]

open access: yesPhysical Review Letters, 2013
Blind quantum computation allows a client with limited quantum capabilities to interact with a remote quantum computer to perform an arbitrary quantum computation, while keeping the description of that computation hidden from the remote quantum computer.
Mantri, A.   +2 more
openaire   +3 more sources

Optimal quantum thermometry by dephasing [PDF]

open access: yesQuantum Information Processing, 2017
Decoherence often happens in the quantum world. We try to utilize quantum dephasing to build an optimal thermometry. By calculating the Cram$\acute{e}$r-Rao bound, we prove that the Ramsey measurement is the optimal way to measure the temperature for uncorrelated particles.
Dong Xie 0006, Chunling Xu, An-Min Wang
openaire   +2 more sources

Optimal Representation of Quantum Channels [PDF]

open access: yes, 2020
11 ...
Paulina Lewandowska   +2 more
openaire   +2 more sources

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