Results 21 to 30 of about 189,782 (285)

Error-resilient Monte Carlo quantum simulation of imaginary time [PDF]

open access: yesQuantum, 2023
Computing the ground-state properties of quantum many-body systems is a promising application of near-term quantum hardware with a potential impact in many fields.
Mingxia Huo, Ying Li
doaj   +1 more source

Quantum Monte Carlo Method for Attractive Coulomb Potentials [PDF]

open access: yes, 2001
Starting from an exact lower bound on the imaginary-time propagator, we present a Path-Integral Quantum Monte Carlo method that can handle singular attractive potentials.
G. Baym   +27 more
core   +4 more sources

Quantum Monte Carlo with variable spins [PDF]

open access: yesThe Journal of Chemical Physics, 2016
We investigate the inclusion of variable spins in electronic structure quantum Monte Carlo, with a focus on diffusion Monte Carlo with Hamiltonians that include spin-orbit interactions. Following our previous introduction of fixed-phase spin-orbit diffusion Monte Carlo, we thoroughly discuss the details of the method and elaborate upon its ...
Cody A. Melton   +2 more
openaire   +3 more sources

Quantum advantage of Monte Carlo option pricing

open access: yesJournal of Physics Communications, 2023
Quantum computers have the potential to provide quadratic speedup for Monte Carlo methods currently used in various classical applications. In this work, we examine the advantage of quantum computers for financial option pricing with the Monte Carlo ...
Zoltán Udvarnoki   +2 more
doaj   +1 more source

Metropolis Methods for Quantum Monte Carlo Simulations [PDF]

open access: yes, 2003
Since its first description fifty years ago, the Metropolis Monte Carlo method has been used in a variety of different ways for the simulation of continuum quantum many-body systems.
Ceperley, D. M.
core   +3 more sources

QMC-SW: A simple workflow for quantum Monte Carlo calculations in chemistry

open access: yesSoftwareX, 2019
With constant improvements in the speed of computers, the importance of Quantum Monte Carlo (QMC) in chemistry is destined to increase substantially in the next decades, for both benchmark and routine calculations.
Vladimir Konkov, Roberto Peverati
doaj   +1 more source

Coupled Electron Ion Monte Carlo Calculations of Atomic Hydrogen [PDF]

open access: yes, 2004
We present a new Monte Carlo method which couples Path Integral for finite temperature protons with Quantum Monte Carlo for ground state electrons, and we apply it to metallic hydrogen for pressures beyond molecular dissociation.
Ceperley, David M.   +2 more
core   +1 more source

Atomic Nuclei From Quantum Monte Carlo Calculations With Chiral EFT Interactions

open access: yesFrontiers in Physics, 2020
Quantum Monte Carlo methods are powerful numerical tools to accurately solve the Schrödinger equation for nuclear systems, a necessary step to describe the structure and reactions of nuclei and nucleonic matter starting from realistic interactions and ...
Stefano Gandolfi   +5 more
doaj   +1 more source

Inclusion–exclusion principle for open quantum systems with bosonic bath

open access: yesNew Journal of Physics, 2021
We present two fast algorithms which apply inclusion–exclusion principle to sum over the bosonic diagrams in bare diagrammatic quantum Monte Carlo and inchworm Monte Carlo method, respectively.
Siyao Yang, Zhenning Cai, Jianfeng Lu
doaj   +1 more source

Resolvendo a equação de Schrödinger utilizando procedimentos numéricos fundamentais

open access: yesQuímica Nova, 2012
A combination of the variational principle, expectation value and Quantum Monte Carlo method is used to solve the Schrödinger equation for some simple systems.
Rogério Custodio   +2 more
doaj   +1 more source

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