Novel bipartite entanglement in the quantum dimer magnet Yb${}_2$Be${}_2$SiO${}_7$

A. Brassington, Q. Ma, G. Duan +14

The quantum dimer magnet, with antiferromagnetic intradimer and interdimer Heisenberg exchange between spin-1/2 moments, is known to host an up/down - down/up singlet ground state…