A review on quantum approximate optimization algorithm and its variants

K Blekos, D Brand, A Ceschini, CH Chou, RH Li… - Physics Reports, 2024 - Elsevier
Abstract The Quantum Approximate Optimization Algorithm (QAOA) is a highly promising
variational quantum algorithm that aims to solve combinatorial optimization problems that …

[HTML][HTML] Universal control of a six-qubit quantum processor in silicon

SGJ Philips, MT Mądzik, SV Amitonov, SL de Snoo… - Nature, 2022 - nature.com
Future quantum computers capable of solving relevant problems will require a large number
of qubits that can be operated reliably. However, the requirements of having a large qubit …

Nonlinear response and crosstalk of electrically driven silicon spin qubits

B Undseth, X Xue, M Mehmandoost… - Physical Review …, 2023 - APS
Micromagnet-based electric dipole spin resonance offers an attractive path for the near-term
scaling of dense arrays of silicon spin qubits in gate-defined quantum dots while maintaining …

Simple framework for systematic high-fidelity gate operations

M Rimbach-Russ, SGJ Philips, X Xue… - Quantum Science …, 2023 - iopscience.iop.org
Semiconductor spin qubits demonstrated single-qubit gates with fidelities up to $99.9\% $
benchmarked in the single-qubit subspace. However, tomographic characterizations reveal …

Correlations of spin splitting and orbital fluctuations due to 1/f charge noise in the Si/SiGe quantum dot

M Kȩpa, Ł Cywiński, JA Krzywda - Applied Physics Letters, 2023 - pubs.aip.org
Fluctuations in electric fields can change the position of a gate-defined quantum dot (QD) in
a semiconductor heterostructure. In the presence of magnetic field gradient, these stochastic …

Redundant string symmetry-based error correction: Demonstrations on quantum devices

Z Qin, D Azses, E Sela, R Raussendorf, VW Scarola - Physical Review A, 2024 - APS
Computational power in measurement-based quantum computing stems from the symmetry-
protected topological (SPT) order of entangled resource states. However, resource states …

Ability of error correlations to improve the performance of variational quantum algorithms

J Kattemölle, G Burkard - Physical Review A, 2023 - APS
The quantum approximate optimization algorithm (QAOA) has the potential of providing a
useful quantum advantage on noisy intermediate-scale quantum (NISQ) devices. The effects …

Analysis and mitigation of residual exchange coupling in linear spin-qubit arrays

I Heinz, AR Mills, JR Petta, G Burkard - Physical Review Research, 2024 - APS
In recent advancements of quantum computing utilizing spin qubits, it has been
demonstrated that this platform possesses the potential for implementing two-qubit gates …

From Graphs to Qubits: A Critical Review of Quantum Graph Neural Networks

A Ceschini, F Mauro, F De Falco… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum Graph Neural Networks (QGNNs) represent a novel fusion of quantum computing
and Graph Neural Networks (GNNs), aimed at overcoming the computational and scalability …

Scalable parity architecture with a shuttling-based spin qubit processor

F Ginzel, M Fellner, C Ertler, LR Schreiber, H Bluhm… - Physical Review B, 2024 - APS
Motivated by the prospect of a two-dimensional square-lattice geometry for semiconductor
spin qubits, we explore the realization of the parity architecture with quantum dots. We …