Spin-spin correlations in the one-dimensional spin-1/2, antiferromagnetic Heisenberg chain

Journal Article · Mon Apr 15 00:00:00 EDT 1991 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.347825· OSTI ID:5570279

Lin, H Q; Campbell, D K ^[1]

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1. Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (US)

We have calculated the spin-spin correlations in the ground state of spin-1/2, one-dimensional, antiferromagnetic Heisenberg chain numerically. Using improved algorithms, we have been able to perform exact diagonalizations for lattices up to 30 sites and quantum Monte Carlo simulations for lattices up to 512 sites. This extensive range allows us to investigate the logarithmic dependence of spin-spin correlations. We present our results and discuss their implications.

• OSTI ID: 5570279
• Journal Information: Journal of Applied Physics; (USA), Vol. 69:8; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
ANTIFERROMAGNETISM
HEISENBERG MODEL
ALGORITHMS
CORRELATION FUNCTIONS
ELECTRONIC STRUCTURE
LASL
MONTE CARLO METHOD
SPIN
ANGULAR MOMENTUM
CRYSTAL MODELS
FUNCTIONS
MAGNETISM
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
PARTICLE PROPERTIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
657002* - Theoretical & Mathematical Physics- Classical & Quantum Mechanics
656002 - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)
360104 - Metals & Alloys- Physical Properties