Results 11 to 20 of about 2,867,791 (321)

Scalable neural quantum states architecture for quantum chemistry [PDF]

open access: yesMachine Learning: Science and Technology, 2023
Variational optimization of neural-network representations of quantum states has been successfully applied to solve interacting fermionic problems. Despite rapid developments, significant scalability challenges arise when considering molecules of large ...
Tianchen Zhao   +2 more
doaj   +2 more sources

Evaluating the evidence for exponential quantum advantage in ground-state quantum chemistry [PDF]

open access: yesNature Communications, 2022
Due to intense interest in the potential applications of quantum computing, it is critical to understand the basis for potential exponential quantum advantage in quantum chemistry.
Seunghoon Lee   +17 more
semanticscholar   +1 more source

Initial State Preparation for Quantum Chemistry on Quantum Computers [PDF]

open access: yesPRX Quantum, 2023
Quantum algorithms for ground-state energy estimation of chemical systems require a high-quality initial state. However, initial state preparation is commonly either neglected entirely, or assumed to be solved by a simple product state like Hartree-Fock.
Stepan Fomichev   +10 more
semanticscholar   +1 more source

A Self-Attention Ansatz for Ab-initio Quantum Chemistry [PDF]

open access: yesInternational Conference on Learning Representations, 2022
We present a novel neural network architecture using self-attention, the Wavefunction Transformer (Psiformer), which can be used as an approximation (or Ansatz) for solving the many-electron Schr\"odinger equation, the fundamental equation for quantum ...
I. V. Glehn, J. Spencer, David Pfau
semanticscholar   +1 more source

Twenty Years of Auxiliary-Field Quantum Monte Carlo in Quantum Chemistry: An Overview and Assessment on Main Group Chemistry and Bond-Breaking. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2022
In this work, we present an overview of the phaseless auxiliary-field quantum Monte Carlo (ph-AFQMC) approach from a computational quantum chemistry perspective and present a numerical assessment of its performance on main group chemistry and bond ...
Joonho Lee, Hung Q. Pham, D. Reichman
semanticscholar   +1 more source

Software for the frontiers of quantum chemistry: An overview of developments in the Q-Chem 5 package

open access: yesJournal of Chemical Physics, 2021
This article summarizes technical advances contained in the fifth major release of the Q-Chem quantum chemistry program package, covering developments since 2015.
E. Epifanovsky   +219 more
semanticscholar   +1 more source

Dielectric continuum methods for quantum chemistry [PDF]

open access: yesWIREs Computational Molecular Science, 2021
This review describes the theory and implementation of implicit solvation models based on continuum electrostatics. Within quantum chemistry this formalism is sometimes synonymous with the polarizable continuum model, a particular boundary‐element ...
J. Herbert
semanticscholar   +1 more source

Dequantizing the Quantum singular value transformation: hardness and applications to Quantum chemistry and the Quantum PCP conjecture [PDF]

open access: yesSymposium on the Theory of Computing, 2021
The Quantum Singular Value Transformation (QSVT) is a recent technique that gives a unified framework to describe most quantum algorithms discovered so far, and may lead to the development of novel quantum algorithms.
Sevag Gharibian, F. Gall
semanticscholar   +1 more source

The ORCA quantum chemistry program package.

open access: yesJournal of Chemical Physics, 2020
In this contribution to the special software-centered issue, the ORCA program package is described. We start with a short historical perspective of how the project began and go on to discuss its current feature set.
F. Neese   +3 more
semanticscholar   +1 more source

Quantum Chemistry in the Age of Quantum Computing. [PDF]

open access: yesChemical Reviews, 2018
Practical challenges in simulating quantum systems on classical computers have been widely recognized in the quantum physics and quantum chemistry communities over the past century. Although many approximation methods have been introduced, the complexity
Yudong Cao   +12 more
semanticscholar   +1 more source

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