Another Exact Ground State of a 2D Quantum Antiferromagnet
Strongly Correlated Electrons
2022-06-07 v2
Abstract
We present the exact dimer ground state of a quantum antiferromagnet on the maple-leaf lattice. A coupling anisotropy for one of the three inequivalent nearest-neighbor bonds is sufficient to stabilize the dimer state. Together with the Shastry-Sutherland Hamiltonian, we show that this is the only other model with an exact dimer ground state for all two-dimensional lattices with uniform tilings.
Keywords
Cite
@article{arxiv.2112.05137,
title = {Another Exact Ground State of a 2D Quantum Antiferromagnet},
author = {Pratyay Ghosh and Tobias Müller and Ronny Thomale},
journal= {arXiv preprint arXiv:2112.05137},
year = {2022}
}
Comments
4 pages, 3 figures, Supplementary Material (5 pages, 5 figures)