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From the 1 of 7 linked papers with an AI index.

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7 papers

quant-ph2026

Quantum-Accelerated Self-Consistent Field: A Hybrid Algorithm

Alexis Ralli, Tim Weaving, Thomas M. Bickley +2

The paper proposes a hybrid quantum‑classical algorithm, GAS‑SCF, that uses Grover‑based adaptive search and amplitude amplification to accelerate self‑consistent field calculation…

quant-ph2025

Towards Compact Wavefunctions from Quantum-Selected Configuration Interaction

Tim Weaving, Angus Mingare, Alexis Ralli +1

A recent direction in quantum computing for molecular electronic structure sees the use of quantum devices as configuration sampling machines integrated within high-performance com…

quant-ph2025

Extending Quantum Computing through Subspace, Embedding and Classical Molecular Dynamics Techniques

Thomas M. Bickley, Angus Mingare, Tim Weaving +10

The advent of hybrid computing platforms consisting of quantum processing units integrated with conventional high-performance computing brings new opportunities for algorithm desig…

quant-ph2025

Noncontextual Pauli Hamiltonians

Alexis Ralli, Tim Weaving, Peter J. Love

Contextuality is a key feature of quantum mechanics, and identification of noncontextual subtheories of quantum mechanics is of both fundamental and practical importance. Recently,…

quant-ph2025

Simulating the Antiferromagnetic Heisenberg Model on a Spin-Frustrated Kagome Lattice with the Contextual Subspace Variational Quantum Eigensolver

Tim Weaving, Alexis Ralli, Vinul Wimalaweera +2

In this work we investigate the ground state properties of a candidate quantum spin liquid using a superconducting Noisy Intermediate-Scale Quantum (NISQ) device. Specifically, we…

quant-ph2025

Bridging Quantum Chemistry and MaxCut: Classical Performance Guarantees and Quantum Algorithms for the Hartree-Fock Method

Alexis Ralli, Tim Weaving, Peter V. Coveney +1

In quantum chemistry, self-consistent field (SCF) algorithms define a nonlinear optimization problem, with both continuous and discrete components. In this work, we derive Hartree-…