skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A Study of the Effects of Disorder in the 2D Hubbard Model

Abstract

We study the effects of disorder on long range antiferromagnetic correlations and the Mott gap in the half-filled, two dimensional, repulsive Hubbard model. We employ Hartree-Fock (HF) and Quantum Monte Carlo (QMC) techniques in our study of the bond and site disordered models. Results from mean field (HF) calculations are used to develop a qualitative picture of the physics and to guide our choice for input to the QMC methods. The basic properties of two QMC methods for correlated fermions are discussed, and the results from these different approaches are presented.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
793619
Report Number(s):
UCRL-JC-139246
TRN: US0205250
DOE Contract Number:  
W-7405-Eng-48
Resource Type:
Conference
Resource Relation:
Conference: UC Davis Colloquium, Davis, CA (US), 06/05/2000; Other Information: PBD: 5 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMIONS; HUBBARD MODEL; PHYSICS; ANTIFERROMAGNETISM; HARTREE-FOCK METHOD; MONTE CARLO METHOD

Citation Formats

Enjalran, M, Hebert, F, Scalettar, R, Zhang, S, and Batrouni, G. A Study of the Effects of Disorder in the 2D Hubbard Model. United States: N. p., 2000. Web.
Enjalran, M, Hebert, F, Scalettar, R, Zhang, S, & Batrouni, G. A Study of the Effects of Disorder in the 2D Hubbard Model. United States.
Enjalran, M, Hebert, F, Scalettar, R, Zhang, S, and Batrouni, G. Mon . "A Study of the Effects of Disorder in the 2D Hubbard Model". United States. https://www.osti.gov/servlets/purl/793619.
@article{osti_793619,
title = {A Study of the Effects of Disorder in the 2D Hubbard Model},
author = {Enjalran, M and Hebert, F and Scalettar, R and Zhang, S and Batrouni, G},
abstractNote = {We study the effects of disorder on long range antiferromagnetic correlations and the Mott gap in the half-filled, two dimensional, repulsive Hubbard model. We employ Hartree-Fock (HF) and Quantum Monte Carlo (QMC) techniques in our study of the bond and site disordered models. Results from mean field (HF) calculations are used to develop a qualitative picture of the physics and to guide our choice for input to the QMC methods. The basic properties of two QMC methods for correlated fermions are discussed, and the results from these different approaches are presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: