Abstract
Results are given for the ground state energy and excitation spectrum of a simple N-state Z N spin chain described by free parafermions. The model is non-Hermitian for with a real ground state energy and a complex excitation spectrum. Although having a simpler Hamiltonian than the superintegrable chiral Potts model, the model is seen to share some properties with it, e.g. the specific heat exponent and the anisotropic correlation length exponents and .
Original language | English |
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Article number | 16LT03 |
Journal | Journal of Physics A: Mathematical and Theoretical |
Volume | 50 |
Issue number | 16 |
DOIs | |
Publication status | Published - 20 Mar 2017 |