Evaluating a quantum-classical quantum Monte Carlo algorithm with Matchgate shadows

B Huang, YT Chen, B Gupt, M Suchara, A Tran… - Physical Review …, 2024 - APS
Solving the electronic structure problem of molecules and solids to high accuracy is a major
challenge in quantum chemistry and condensed matter physics. The rapid emergence and …

Quantum algorithms for the variational optimization of correlated electronic states with stochastic reconfiguration and the linear method

M Motta, KJ Sung, J Shee - The Journal of Physical Chemistry A, 2024 - ACS Publications
Solving the electronic Schrodinger equation for strongly correlated ground states is a long-
standing challenge. We present quantum algorithms for the variational optimization of wave …

Classical and quantum cost of measurement strategies for quantum-enhanced auxiliary field quantum monte carlo

M Kiser, A Schroeder, GLR Anselmetti… - New Journal of …, 2024 - iopscience.iop.org
Quantum-enhanced auxiliary field quantum Monte Carlo (QC-AFQMC) uses output from a
quantum computer to increase the accuracy of its classical counterpart. The algorithm …

Coupled cluster method tailored with quantum computing

L Erhart, Y Yoshida, V Khinevich, W Mizukami - Physical Review Research, 2024 - APS
Introducing an active space approximation is inevitable for the quantum computations of
chemical systems. However, this approximation ignores the electron correlations related to …

Classical optimisation of reduced density matrix estimations with classical shadows using N-representability conditions under shot noise considerations

GLR Anselmetti, M Degroote, N Moll… - arXiv preprint arXiv …, 2024 - arxiv.org
Classical shadow tomography has become a powerful tool in learning about quantum states
prepared on a quantum computer. Recent works have used classical shadows to …

Google Quantum AI's Quest for Error-Corrected Quantum Computers

M AbuGhanem - arXiv preprint arXiv:2410.00917, 2024 - arxiv.org
Quantum computers stand at the forefront of technological innovation, offering exponential
computational speed-ups that challenge classical computing capabilities. At the cutting edge …

Spin coupling is all you need: Encoding strong electron correlation on quantum computers

D Marti-Dafcik, HGA Burton, DP Tew - arXiv preprint arXiv:2404.18878, 2024 - arxiv.org
The performance of quantum algorithms for eigenvalue problems, such as computing
Hamiltonian spectra, depends strongly on the overlap of the initial wavefunction and the …

[PDF][PDF] Quantum Classical Hybrid Algorithms for Accurate

LK Erhart - 2024 - ir.library.osaka-u.ac.jp
Quantum computing offers new possibilities in quantum chemistry for calculating the
electronic structure of a molecule. Quantum computers, which utilize quantum mechanical …