An effective quantum rotor model connects finite-size energy splittings seen in exact diagonalization to the ObQD selection energy scale, allowing detection of quantum-selected order in one-, two-, and three-dimensional frustrated spin models.
Balents, Spin liquids in frustrated magnets, Nature464, 199 (2010)
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DMRG calculations show the easy-axis XXZ antiferromagnet on the triangular lattice retains a quantum-fluctuation-selected Y-state three-sublattice order with moments approaching approximately (0.419, -0.208, -0.208) as anisotropy diverges.
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Nontrivial three-sublattice magnetization in the easy-axis spin-1/2 XXZ antiferromagnet on the triangular lattice
DMRG calculations show the easy-axis XXZ antiferromagnet on the triangular lattice retains a quantum-fluctuation-selected Y-state three-sublattice order with moments approaching approximately (0.419, -0.208, -0.208) as anisotropy diverges.
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