Phase diagram of the ${\mathbb{Z}}_3$-Fock parafermion chain with pair hopping

Iman Mahyaeh, Jurriaan Wouters, Dirk Schuricht

We study a tight binding model of ${\mathbb{Z}}_3$-Fock parafermions with single-particle and pair-hopping terms. The phase diagram has four different phases: a gapped phase, a gaple…