Gapped topological spin-orbital liquid on the honeycomb lattice
Researchers used large-scale density matrix renormalization group simulations to study whether an SU(4) Heisenberg model on a honeycomb lattice hosts a gapped topological phase. The simulation found numerical evidence of a gapped spin-orbital liquid ground state with Z4 topological order, characterized by specific entanglement entropy values and the absence of symmetry breaking.