Results 41 to 50 of about 3,959 (191)

Instance Independence of Single Layer Quantum Approximate Optimization Algorithm on Mixed-Spin Models at Infinite Size [PDF]

open access: yesQuantum, 2021
This paper studies the application of the Quantum Approximate Optimization Algorithm (QAOA) to spin-glass models with random multi-body couplings in the limit of a large number of spins. We show that for such mixed-spin models the performance of depth $1$
Jahan Claes, Wim van Dam
doaj   +1 more source

Vanishing performance of the parity-encoded quantum approximate optimization algorithm applied to spin-glass models [PDF]

open access: yesQuantum
The parity mapping provides a geometrically local encoding of the Quantum Approximate Optimization Algorithm (QAOA), at the expense of having a quadratic qubit overhead for all-to-all connected problems. In this work, we benchmark the parity-encoded QAOA
Elisabeth Wybo, Martin Leib
doaj   +1 more source

qTorch: The Quantum Tensor Contraction Handler

open access: yes, 2018
Classical simulation of quantum computation is necessary for studying the numerical behavior of quantum algorithms, as there does not yet exist a large viable quantum computer on which to perform numerical tests.
Aspuru-Guzik, Alán   +5 more
core   +2 more sources

Parameter Setting in Quantum Approximate Optimization of Weighted Problems [PDF]

open access: yesQuantum
Quantum Approximate Optimization Algorithm (QAOA) is a leading candidate algorithm for solving combinatorial optimization problems on quantum computers. However, in many cases QAOA requires computationally intensive parameter optimization.
Shree Hari Sureshbabu   +6 more
doaj   +1 more source

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

Hamiltonian-Oriented Homotopy QAOA

open access: yes, 2023
The classical homotopy optimization approach has the potential to deal with highly nonlinear landscape, such as the energy landscape of QAOA problems. Following this motivation, we introduce Hamiltonian-Oriented Homotopy QAOA (HOHo-QAOA), that is a heuristic method for combinatorial optimization using QAOA, based on classical homotopy optimization. The
Kundu, Akash   +2 more
openaire   +2 more sources

Network Community Detection On Small Quantum Computers

open access: yes, 2019
In recent years a number of quantum computing devices with small numbers of qubits became available. We present a hybrid quantum local search (QLS) approach that combines a classical machine and a small quantum device to solve problems of practical size.
Alexeev, Yuri   +4 more
core   +1 more source

Multi-angle quantum approximate optimization algorithm

open access: yesScientific Reports, 2022
The quantum approximate optimization algorithm (QAOA) generates an approximate solution to combinatorial optimization problems using a variational ansatz circuit defined by parameterized layers of quantum evolution.
Rebekah Herrman   +4 more
doaj   +1 more source

Quantum approximate optimization for hard problems in linear algebra

open access: yesSciPost Physics Core, 2021
The quantum approximate optimization algorithm (QAOA) by Farhi et al. is a quantum computational framework for solving quantum or classical optimization tasks.
Ajinkya Borle, Vincent E. Elfving, Samuel J. Lomonaco
doaj   +1 more source

Optimized Compilation of Aggregated Instructions for Realistic Quantum Computers

open access: yes, 2019
Recent developments in engineering and algorithms have made real-world applications in quantum computing possible in the near future. Existing quantum programming languages and compilers use a quantum assembly language composed of 1- and 2-qubit (quantum
Chong, Fred T.   +6 more
core   +1 more source

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