Published June 5, 2000 | Version v1
Report Metadata-only

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

Creators

Description

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

Availability note (English)

Available from PURL: https://www.osti.gov/servlets/purl/793619-9A2IUl/native/

Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/793619-9A2IUl/native/;

Publishing Information

Imprint Pagination
446 Kilobytes
Report number
UCRL-JC--139246

Conference

Title
UC Davis Colloquium
Dates
6 May 2000
Place
Davis, CA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
33068901
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ANTIFERROMAGNETISM; FERMIONS; HARTREE-FOCK METHOD; HUBBARD MODEL; MEAN-FIELD THEORY; MONTE CARLO METHOD; QUANTUM MECHANICS; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
CALCULATION METHODS; CRYSTAL MODELS; MAGNETISM; MATHEMATICAL MODELS; MECHANICS

Optional Information

Contract/Grant/Project number
W-7405-Eng-48
Funding organization
USDOE Office of Defense Programs (DP) (United States)