Results 21 to 30 of about 4,386 (222)

Bayesian Optimization for QAOA

open access: yesIEEE 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. In fact, it relies on a classical subroutine to optimize the parameters of a quantum circuit. In this work we present a Bayesian optimization procedure to fulfil this optimization task, and
Simone Tibaldi   +3 more
openaire   +4 more sources

The Quantum Approximate Optimization Algorithm and the Sherrington-Kirkpatrick Model at Infinite Size [PDF]

open access: yesQuantum, 2022
The Quantum Approximate Optimization Algorithm (QAOA) is a general-purpose algorithm for combinatorial optimization problems whose performance can only improve with the number of layers $p$.
Edward Farhi   +3 more
doaj   +1 more source

Improving the performance of quantum approximate optimization for preparing non-trivial quantum states without translational symmetry

open access: yesNew Journal of Physics, 2023
The variational preparation of complex quantum states using the quantum approximate optimization algorithm (QAOA) is of fundamental interest, and becomes a promising application of quantum computers.
Zheng-Hang Sun   +3 more
doaj   +1 more source

Reinforcement learning assisted recursive QAOA. [PDF]

open access: yesEPJ Quantum Technol
AbstractIn recent years, variational quantum algorithms such as the Quantum Approximation Optimization Algorithm (QAOA) have gained popularity as they provide the hope of using NISQ devices to tackle hard combinatorial optimization problems. It is, however, known that at low depth, certain locality constraints of QAOA limit its performance.
Patel YJ, Jerbi S, Bäck T, Dunjko V.
europepmc   +5 more sources

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

Solution of SAT problems with the adaptive-bias quantum approximate optimization algorithm

open access: yesPhysical Review Research, 2023
The quantum approximate optimization algorithm (QAOA) is a promising method for solving certain classical combinatorial optimization problems on near-term quantum devices. When employing the QAOA to 3-SAT and Max-3-SAT problems, the quantum cost exhibits
Yunlong Yu   +4 more
doaj   +1 more source

Classical Optimizers for Noisy Intermediate-Scale Quantum Devices [PDF]

open access: yes, 2020
We present a collection of optimizers tuned for usage on Noisy Intermediate-Scale Quantum (NISQ) devices. Optimizers have a range of applications in quantum computing, including the Variational Quantum Eigensolver (VQE) and Quantum Approximate ...
De Jong, W   +4 more
core   +2 more sources

Graph neural network initialisation of quantum approximate optimisation [PDF]

open access: yesQuantum, 2022
Approximate combinatorial optimisation has emerged as one of the most promising application areas for quantum computers, particularly those in the near term.
Nishant Jain   +3 more
doaj   +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

JuliQAOA: Fast, Flexible QAOA Simulation

open access: yesProceedings of the SC '23 Workshops of the International Conference on High Performance Computing, Network, Storage, and Analysis, 2023
We introduce JuliQAOA, a simulation package specifically built for the Quantum Alternating Operator Ansatz (QAOA). JuliQAOA does not require a circuit-level description of QAOA problems, or another package to simulate such circuits, instead relying on a more direct linear algebra implementation.
John Golden   +4 more
openaire   +2 more sources

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