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arXiv · 1608.02370

Exact Realization of a Quantum-Dimer Model in Heisenberg Antiferromagnets on a Diamond-Like Decorated Lattice

Yuhei Hirose·Akihide Oguchi·Yoshiyuki Fukumoto
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Abstract

We study Heisenberg antiferromagnets on a diamond-like decorated square lattice perturbed by further neighbor couplings. The second-order effective Hamiltonian is calculated and the resultant Hamiltonian is found to be a square-lattice quantum-dimer model with a finite hopping amplitude and no repulsion, which suggests the stabilization of the plaquette phase. Our recipe for constructing quantum-dimer models can be adopted for other lattices and provides a route for the experimental realization of quantum-dimer models.

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Yuhei Hirose, Akihide Oguchi, Yoshiyuki Fukumoto. 2016-08-08. Exact Realization of a Quantum-Dimer Model in Heisenberg Antiferromagnets on a Diamond-Like Decorated Lattice. https://doi.org/10.7566/jpsj.85.094002

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