Exact zeros of entanglement for arbitrary rank-two mixtures derived from a geometric view of the zero polytopeRemoveAndreas OsterlohPhys. Rev. A 94, 062333 (2016)
Dimer problem on a spherical surfaceRemoveA. Tononi, D. S. Petrov, and M. LewensteinPhys. Rev. A 111, L051304 (2025)