Parent Hamiltonian for the Chiral Spin Liquid
Strongly Correlated Electrons
2015-05-13 v3
Abstract
We present a method for constructing parent Hamiltonians for the chiral spin liquid. We find two distinct Hamiltonians for which the chiral spin liquid on a square lattice is an exact zero-energy ground state. We diagonalize both Hamiltonians numerically for 16-site lattices, and find that the chiral spin liquid, modulo its two-fold topological degeneracy, is indeed the unique ground state for one Hamiltonian, while it is not unique for the other.
Cite
@article{arxiv.0905.3257,
title = {Parent Hamiltonian for the Chiral Spin Liquid},
author = {Ronny Thomale and Eliot Kapit and Darrell F. Schroeter and Martin Greiter},
journal= {arXiv preprint arXiv:0905.3257},
year = {2015}
}
Comments
14 pages, 3 figures; references added