Phase diagram of the isotropic spin-3/2 model on the z=3 Bethe lattice

Article

关键词: MATRIX RENORMALIZATION-GROUP;    BOND GROUND-STATES;    CAYLEY TREE;    QUANTUM;    ANTIFERROMAGNETS;    SYSTEMS;   

DOI  :  10.1103/PhysRevB.88.035138

来源: SCIE

【 摘 要 】

We study an SU(2) symmetric spin-3/2 model on the z = 3 Bethe lattice using the infinite time evolving block decimation (iTEBD) method. This model is shown to exhibit a rich phase diagram. We compute several order parameters which allow us to identify a ferromagnetic, a ferrimagnetic, an antiferromagnetic, as well as a dimerized phase. We calculate the entanglement spectra from which we conclude the existence of a symmetry protected topological phase that is characterized by S = 1/2 edge spins. Details of the iTEBD algorithm used for the simulations are included.

【 授权许可】

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