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 …

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 …

Walking through Hilbert space with quantum computers

T Jiang, J Zhang, MKA Baumgarten, MF Chen… - arXiv preprint arXiv …, 2024 - arxiv.org
Computations of chemical systems' equilibrium properties and non-equilibrium dynamics
have been suspected of being a" killer app" for quantum computers. This review highlights …

Improved modularity and new features in ipie: Toward even larger AFQMC calculations on CPUs and GPUs at zero and finite temperatures

T Jiang, MKA Baumgarten, PF Loos… - The Journal of …, 2024 - pubs.aip.org
ipie is a Python-based auxiliary-field quantum Monte Carlo (AFQMC) package that has
undergone substantial improvements since its initial release [Malone et al., J. Chem. Theory …

Unbiasing Fermionic Auxiliary-Field Quantum Monte Carlo with Matrix Product State Trial Wavefunctions

T Jiang, B O'Gorman, A Mahajan, J Lee - arXiv preprint arXiv:2405.05440, 2024 - arxiv.org
In this work, we report, for the first time, an implementation of fermionic auxiliary-field
quantum Monte Carlo (AFQMC) using matrix product state (MPS) trial wavefunctions …

Chelate Complexes of 3d Transition Metal Ions─ A Challenge for Electronic-Structure Methods?

L Hehn, P Deglmann, M Kühn - Journal of Chemical Theory and …, 2024 - ACS Publications
Different electronic-structure methods were assessed for their ability to predict two important
properties of the industrially relevant chelating agent nitrilotriacetic acid (NTA): its selectivity …

Contextual subspace auxiliary-field quantum Monte Carlo: Improved bias with reduced quantum resources

M Kiser, M Beuerle, F Simkovic IV - arXiv preprint arXiv:2408.06160, 2024 - arxiv.org
Using trial wavefunctions prepared on quantum devices to reduce the bias of auxiliary-field
quantum Monte Carlo (QC-AFQMC) has established itself as a promising hybrid approach to …

Self-Refinement of Auxiliary-Field Quantum Monte Carlo via Non-Orthogonal Configuration Interaction

Z Sukurma, M Schlipf, G Kresse - arXiv preprint arXiv:2501.12765, 2025 - arxiv.org
For optimal accuracy, auxiliary-field quantum Monte Carlo (AFQMC) requires trial states
consisting of multiple Slater determinants. We develop an efficient algorithm to select the …

Quantum Computing for Automotive Applications: From Algorithms to Applications

BMWGQ Team, J Klepsch, JR Finžgar, F Kiwit… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum computing could impact various industries, with the automotive industry with many
computational challenges, from optimizing supply chains and manufacturing to vehicle …

GPU-accelerated Auxiliary-field quantum Monte Carlo with multi-Slater determinant trial states

Y Huang, Z Guo, HQ Pham, D Lv - arXiv preprint arXiv:2406.08314, 2024 - arxiv.org
The accuracy of phaseless auxiliary-field quantum Monte Carlo (ph-AFQMC) can be
systematically improved with better trial states. Using multi-Slater determinant trial states, ph …