Investigating the effect of circuit cutting in QAOA for the MaxCut problem on NISQ devices

M Bechtold, J Barzen, F Leymann… - Quantum Science …, 2023 - iopscience.iop.org
Noisy intermediate-scale quantum (NISQ) devices are restricted by their limited number of
qubits and their short decoherence times. An approach addressing these problems is …

Doubly optimal parallel wire cutting without ancilla qubits

H Harada, K Wada, N Yamamoto - PRX Quantum, 2024 - APS
A restriction in the quality and quantity of available qubits presents a substantial obstacle to
the application of near-term and early fault-tolerant quantum computers in practical tasks. To …

Cutting multi-control quantum gates with ZX calculus

C Ufrecht, M Periyasamy, S Rietsch, DD Scherer… - Quantum, 2023 - quantum-journal.org
Circuit cutting, the decomposition of a quantum circuit into independent partitions, has
become a promising avenue towards experiments with larger quantum circuits in the noisy …

Single-qubit error mitigation by simulating non-Markovian dynamics

M Rossini, D Maile, J Ankerhold, BIC Donvil - Physical Review Letters, 2023 - APS
Quantum simulation is a powerful tool to study the properties of quantum systems. The
dynamics of open quantum systems are often described by completely positive (CP) maps …

Logical magic state preparation with fidelity beyond the distillation threshold on a superconducting quantum processor

Y Ye, T He, HL Huang, Z Wei, Y Zhang, Y Zhao, D Wu… - Physical Review Letters, 2023 - APS
Fault-tolerant quantum computing based on surface code has emerged as an attractive
candidate for practical large-scale quantum computers to achieve robust noise resistance …

Assessing the benefits and risks of quantum computers

TL Scholten, CJ Williams, D Moody, M Mosca… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum computing is an emerging technology with potentially far-reaching implications for
national prosperity and security. Understanding the timeframes over which economic …

Review of distributed quantum computing. from single qpu to high performance quantum computing

D Barral, FJ Cardama, G Díaz, D Faílde… - arXiv preprint arXiv …, 2024 - arxiv.org
The emerging field of quantum computing has shown it might change how we process
information by using the unique principles of quantum mechanics. As researchers continue …

Experimental demonstration of a high-fidelity virtual two-qubit gate

AP Singh, K Mitarai, Y Suzuki, K Heya, Y Tabuchi… - Physical Review …, 2024 - APS
We experimentally demonstrate a virtual two-qubit gate and characterize it using quantum
process tomography (QPT). The virtual two-qubit gate decomposes an actual two-qubit gate …

Error suppression by a virtual two-qubit gate

T Yamamoto, R Ohira - Journal of Applied Physics, 2023 - pubs.aip.org
Sparse connectivity of a superconducting quantum computer results in large experimental
overheads of SWAP gates. In this study, we consider employing a virtual two-qubit gate …

Entanglement of weighted graphs uncovering transitions in variable-range interacting models

D Ghosh, K Das Agarwal, P Halder, A Sen - Physical Review A, 2024 - APS
The cluster state acquired by evolving the nearest-neighbor (NN) Ising model from a
completely separable state is the resource for measurement-based quantum computation …