Green's-function Monte Carlo study of the t - J model
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Department of Physics, Center for Materials Research and Technology Supercomputer Computations Research Institute, Florida State University, Tallahassee, Florida 32306 (United States)
We show how the Green's function Monte Carlo method can be used to compute accurately the ground-state energy of two-dimensional {ital t}-{ital J} model for lattices of large size. This is demonstrated for the case of a single hole, with the aid of suitable initial and guidance functions. Our transient estimates for the ground-state energy of the 4{times}4 lattice are in remarkable agreement with the exact values; we report results for lattices of significantly larger size than 4{times}4.
- DOE Contract Number:
- FC05-85ER25000
- OSTI ID:
- 7043306
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:1; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
FUNCTIONS
GREEN FUNCTION
GROUND STATES
HEISENBERG MODEL
HOLES
MAGNETISM
MATHEMATICAL MODELS
MONTE CARLO METHOD
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
TWO-DIMENSIONAL CALCULATIONS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
FUNCTIONS
GREEN FUNCTION
GROUND STATES
HEISENBERG MODEL
HOLES
MAGNETISM
MATHEMATICAL MODELS
MONTE CARLO METHOD
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
TWO-DIMENSIONAL CALCULATIONS