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cond-mat.str-el2019
Symmetry-protected trivial phases and quantum phase transitions in an anisotropic antiferromagnetic spin-1 biquadratic model
Xi-Hao Chen, Ian McCulloch, Murray T. Batchelor +1
The ground state phase diagram is obtained for an antiferromagnetic spin-1 anisotropic biquadratic model. With the help of symmetry and duality transformations, three symmetry-prot…
cond-mat.stat-mech2019
Some ground-state expectation values for the free parafermion Z(N) spin chain
Zi-Zhong Liu, Robert A. Henry, Murray T. Batchelor +1
We consider the calculation of ground-state expectation values for the non-Hermitian Z(N) spin chain described by free parafermions. For N=2 the model reduces to the quantum Ising…