Application of Jastrow wave functions to quantum lattice spin theories
- 1 December 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 18 (6), 2655-2658
- https://doi.org/10.1103/physreva.18.2655
Abstract
The use of variational wave functions that are products of overlapping locally correlated functions for studying the ground state of lattice spin theories is described. It is found that very accurate results can be obtained for very simple trial functions. For determining the energy, the method is superior to methods based on blocks.Keywords
This publication has 4 references indexed in Scilit:
- Quantum field theories on a lattice: Variational methods for arbitrary coupling strengths and the Ising model in a transverse magnetic fieldPhysical Review D, 1977
- Estimates of the ground-state eigenvalue of the two-dimensional spin-12X−YmodelPhysical Review B, 1977
- Energy Spectrum of the Excitations in Liquid HeliumPhysical Review B, 1956
- Many-Body Problem with Strong ForcesPhysical Review B, 1955