Quantum dimer model containing Rokhsar-Kivelson point expressed by spin-1/2 Heisenberg antiferromagnets

Autor:	Hirose, Yuhei, Oguchi, Akihide, Fukumoto, Yoshiyuki
Rok vydání:	2020
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 101, 174440 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.101.174440
Popis:	We obtain a quantum dimer model (QDM) containing a Rokhsar-Kivelson (RK) point expressed by spin-1/2 Heisenberg antiferromagnets on a diamond-like decorated square lattice. This lattice has macroscopically degenerated nonmagnetic ground states, which are equivalent to the Hilbert space of a square-lattice QDM. Then, a square-lattice QDM containing the RK point as a second-order effective Hamiltonian is obtained by introducing further neighbor couplings as perturbation. Our model can provide a new method for the experimental realization of a resonating valence bond state in the QDM. Comment: 13 pages, 11 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2004.02174 Zobrazit plný text záznamu View this record from Arxiv