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Ground-state uniqueness of the twelve-site RVB spin-liquid parent Hamiltonian on the kagome lattice

✍ Scribed by Zhou, Zhenyu; Wildeboer, Julia; Seidel, Alexander


Book ID
121664623
Publisher
The American Physical Society
Year
2014
Tongue
English
Weight
331 KB
Volume
89
Category
Article
ISSN
1098-0121

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We study the ground state and low-lying excitations of the S ΒΌ 1 2 XXZ antiferromagnet on the kagomeΒ΄lattice at magnetization one-third of the saturation. An exponential number of non-magnetic states is found below a magnetic gap. The non-magnetic excitations also have a gap above the ground state,