Results 201 to 210 of about 926,631 (217)
Some of the next articles are maybe not open access.

Quantum Monte Carlo Approaches for Correlated Systems

, 2017
Over the past several decades, computational approaches to studying strongly-interacting systems have become increasingly varied and sophisticated.
F. Becca
semanticscholar   +1 more source

Quantum Monte Carlo Simulations

AIP Conference Proceedings, 2009
In these lecture notes we present an introduction to modern quantum Monte Carlo methods for strongly correlated quantum lattice models. After an introduction to classical Monte Carlo methods we will present the loop algorithm, directed loop algorithm, worm algorithm, Wang‐Landau sampling for quantum systems, and continuous‐time algorithms for quantum ...
Matthias Troyer   +3 more
openaire   +2 more sources

Pseudohamiltonians and Quantum Monte Carlo

MRS Proceedings, 1992
ABSTRACTA new method is presented for the generation of valence-only local hamiltonians, or pseudohamiltonians, within the DFT-LDA framework. At the moment these promise to be very useful tools to overcome the problem of eliminating the core electrons from many QMC calculations.
Giovanni B. Bachelet   +3 more
openaire   +2 more sources

Quantum Monte Carlo simulations of solids

, 2001
This article describes the variational and fixed-node diffusion quantum Monte Carlo methods and how they may be used to calculate the properties of many-electron systems.
W. Foulkes   +3 more
semanticscholar   +1 more source

Quantum Monte Carlo

1987
Monte Carlo methods allow us to explore the properties of interacting many-body quantum systems. Here we discuss what we have learned about (1) the 2-D XXZ spin-1/2 system and (2) superconductivity near a Van Hove singularity from simulations; and comment on future needs and prospects.
openaire   +2 more sources

ChemInform Abstract: Quantum Monte Carlo Methods

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
openaire   +2 more sources

Quantum Monte Carlo methods

WIREs Computational Molecular Science, 2011
AbstractSimulations of complex systems have seen rapid progress over the last decade not only due to the continuous acceleration of computer resources but also due to improvements of methods and algorithms. Simulations complement experiments and model calculations in the effort to get insight into complex systems such as materials, complex liquids, or ...
openaire   +2 more sources

Quantum Monte Carlo methods

2014
Introduction In most of the discussion presented so far in this book, the quantum character of atoms and electrons has been ignored. The Ising spin models have been an exception, but since the Ising Hamiltonian is diagonal (in the absence of a transverse magnetic field), all energy eigenvalues are known and the Monte Carlo sampling can be carried out
Kurt Binder, David P. Landau
openaire   +2 more sources

Quantum Monte Carlo Simulations: An Introduction

2002
To be specific, let us consider for the moment the problem of N atoms in a volume V at temperature T, and we wish to calculate the average of some observable A which in quantum mechanics is described by an operator Â.
Dieter W. Heermann, Kurt Binder
openaire   +2 more sources

Quantum Monte Carlo and the hydride ion

Chemical Physics Letters, 1981
Abstract These two papers introduced the term “Quantum Monte Carlo” to the scientific literature. Earlier in the same year McDowell0 and Berneb had used the term in abstracts for an American Chemical Society meeting, and later in the year Gordon, Rothstein, and Proctorc used it in the title of a paper submitted to the Journal of ...
Keith McDowell, Jimmie D. Doll
openaire   +2 more sources

Home - About - Disclaimer - Privacy