Results 21 to 30 of about 2,386 (159)

Quantum approximate optimization algorithm with adaptive bias fields

open access: yesPhysical Review Research, 2022
The quantum approximate optimization algorithm (QAOA) transforms a simple many-qubit wave function into one that encodes a solution to a difficult classical optimization problem.
Yunlong Yu   +5 more
doaj   +1 more source

Alignment between initial state and mixer improves QAOA performance for constrained optimization

open access: yesnpj Quantum Information, 2023
Quantum alternating operator ansatz (QAOA) has a strong connection to the adiabatic algorithm, which it can approximate with sufficient depth. However, it is unclear to what extent the lessons from the adiabatic regime apply to QAOA as executed in ...
Zichang He   +6 more
doaj   +1 more source

Reachability Deficits in Quantum Approximate Optimization of Graph Problems [PDF]

open access: yesQuantum, 2021
The quantum approximate optimization algorithm (QAOA) has become a cornerstone of contemporary quantum applications development. Here we show that the $density$ of problem constraints versus problem variables acts as a performance indicator.
V. Akshay   +3 more
doaj   +1 more source

Hybrid quantum-classical algorithms for approximate graph coloring [PDF]

open access: yesQuantum, 2022
We show how to apply the recursive quantum approximate optimization algorithm (RQAOA) to MAX-$k$-CUT, the problem of finding an approximate $k$-vertex coloring of a graph.
Sergey Bravyi   +3 more
doaj   +1 more source

Learning Infused Quantum-Classical Distributed Optimization Technique for Power Generation Scheduling

open access: yesIEEE Transactions on Quantum Engineering, 2023
The advent of quantum computing can potentially revolutionize how complex problems are solved. This article proposes a two-loop quantum-classical solution algorithm for generation scheduling by infusing quantum computing, machine learning, and ...
Reza Mahroo, Amin Kargarian
doaj   +1 more source

Scaling of the quantum approximate optimization algorithm on superconducting qubit based hardware [PDF]

open access: yesQuantum, 2022
Quantum computers may provide good solutions to combinatorial optimization problems by leveraging the Quantum Approximate Optimization Algorithm (QAOA). The QAOA is often presented as an algorithm for noisy hardware.
Johannes Weidenfeller   +6 more
doaj   +1 more source

QuASeR -- Quantum Accelerated De Novo DNA Sequence Reconstruction

open access: yes, 2020
In this article, we present QuASeR, a reference-free DNA sequence reconstruction implementation via de novo assembly on both gate-based and quantum annealing platforms.
Al-Ars, Zaid   +2 more
core   +1 more source

Fermionic quantum approximate optimization algorithm

open access: yesPhysical Review Research, 2023
Quantum computers are expected to accelerate solving combinatorial optimization problems, including algorithms such as Grover adaptive search and quantum approximate optimization algorithm (QAOA). However, many combinatorial optimization problems involve
Takuya Yoshioka   +3 more
doaj   +1 more source

Coreset Clustering on Small Quantum Computers

open access: yes, 2020
Many quantum algorithms for machine learning require access to classical data in superposition. However, for many natural data sets and algorithms, the overhead required to load the data set in superposition can erase any potential quantum speedup over ...
Anschuetz, Eric R.   +3 more
core   +1 more source

Sampling frequency thresholds for the quantum advantage of the quantum approximate optimization algorithm

open access: yesnpj Quantum Information, 2023
We compare the performance of the Quantum Approximate Optimization Algorithm (QAOA) with state-of-the-art classical solvers Gurobi and MQLib to solve the MaxCut problem on 3-regular graphs. We identify the minimum noiseless sampling frequency and depth p
Danylo Lykov   +5 more
doaj   +1 more source

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