Results 41 to 50 of about 327,655 (287)

Floating point representations in quantum circuit synthesis

open access: yesNew 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
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

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 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

Simulated Quantum Computation of Global Minima [PDF]

open access: yes, 2009
Finding the optimal solution to a complex optimization problem is of great importance in practically all fields of science, technology, technical design and econometrics.
Das R   +9 more
core   +3 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

Optimal Representation of Quantum Channels [PDF]

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

Krotov: A Python implementation of Krotov's method for quantum optimal control [PDF]

open access: yes, 2019
We present a new open-source Python package, krotov, implementing the quantum optimal control method of that name. It allows to determine time-dependent external fields for a wide range of quantum control problems, including state-to-state transfer ...
Basilewitsch, Daniel   +6 more
core   +2 more sources

Natural evolution strategies and variational Monte Carlo

open access: yes, 2020
A notion of quantum natural evolution strategies is introduced, which provides a geometric synthesis of a number of known quantum/classical algorithms for performing classical black-box optimization. Recent work of Gomes et al.
Carleo, Giuseppe   +3 more
core   +1 more source

An Integrated Programming and Development Environment for Adiabatic Quantum Optimization

open access: yes, 2014
Adiabatic quantum computing is a promising route to the computational power afforded by quantum information processing. The recent availability of adiabatic hardware has raised challenging questions about how to evaluate adiabatic quantum optimization ...
Bennink, Ryan S.   +7 more
core   +1 more source

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