Another exact ground state of a two-dimensional quantum antiferromagnet

Article

关键词: RESONATING-VALENCE-BOND;    HEISENBERG-ANTIFERROMAGNET;    LATTICE;    INSULATOR;    PHASE;   

DOI  :  10.1103/PhysRevB.105.L180412

来源: SCIE

【 摘 要 】

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.

【 授权许可】

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