- Letter
Another exact ground state of a two-dimensional quantum antiferromagnet
Phys. Rev. B 105, L180412 – Published 24 May, 2022
DOI: https://doi.org/10.1103/PhysRevB.105.L180412
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.
