Tower of states and the entanglement spectrum in a coplanar antiferromagnet

Article

关键词: FRUSTRATED QUANTUM ANTIFERROMAGNETS;    SPONTANEOUS SYMMETRY-BREAKING;    TRIANGULAR LATTICE;    HEISENBERG-ANTIFERROMAGNET;   

DOI  :  10.1103/PhysRevB.92.144419

来源: SCIE

【 摘 要 】

I extend the analytical arguments of Metlitski and Grover (arXiv: 1112.5166) to compute the entanglement spectrum and entanglement entropy of coplanar antiferromagnets with SO(3) order parameter symmetry. The low-energy states in the entanglement spectrum exhibit the tower-of-states structure, as is expected for systems that undergo spontaneous symmetry breaking. My results are consistent with numerical results on the triangular and Kagome lattice.

【 授权许可】

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