1D valence bond solids in a magnetic field
Strongly Correlated Electrons
2015-10-28 v1
Abstract
A Valence bond solid (VBS) is a nonmagnetic, long-range ordered state of a quantum spin system where local spin singlets are formed in some regular pattern. We here study the competition between VBS order and a fully polarized ferromagnetic state as function of an external magnetic field in a one-dimensional extended Heisenberg model---the J-Q model---using stochastic series expansion quantum Monte Carlo simulations with directed loop updates. We discuss the ground state phase diagram.
Keywords
Cite
@article{arxiv.1510.07680,
title = {1D valence bond solids in a magnetic field},
author = {Adam Iaizzi and Anders W. Sandvik},
journal= {arXiv preprint arXiv:1510.07680},
year = {2015}
}
Comments
5 pages, 6 figures, presented at XXVI IUPAP Conference on Computational Physics (CCP2014)