Symmetry-protected topological phases in two-leg SU(N) spin ladder with unequal spins

Sylvain Capponi, Pierre Fromholz, Philippe Lecheminant +1

Chiral Haldane phases are examples of one-dimensional topological states of matter which are protected by projective SU($N$) group (or its subgroup $\mathbb{Z}_N \times \mathbb{Z}_…