New Paired-Wavefunction for the Frustrated Antiferromagnetic Spin-Half Chain
Strongly Correlated Electrons
2007-05-23 v1 Superconductivity
Abstract
I propose a new paired-wavefunction with a parameter that continuously interpolates from the 1D Jastrow-product to the Majumdar-Ghosh dimer-wavefunction appropriate for the frustrated Heisenberg antiferromagnet. This spin paired-state constructed in basis is an alternative to the well-known resonating-valence-bond basis state for describing the ground-state with no apparent long-range spin order. Some numerical evidences are presented.
Cite
@article{arxiv.cond-mat/9712015,
title = {New Paired-Wavefunction for the Frustrated Antiferromagnetic Spin-Half Chain},
author = {Z. N. C. Ha},
journal= {arXiv preprint arXiv:cond-mat/9712015},
year = {2007}
}