First-order Néel-cVBS transition in a model square lattice $S=1$ antiferromagnet

Julia Wildeboer, Nisheeta Desai, Jonathan D'Emidio +1

We study the Néel to four-fold columnar valence bond solid (cVBS) quantum phase transition in a sign free $S=1$ square lattice model. This is the same kind of transition that for $…