Tunable Mode Entanglement: Topological Su–Schrieffer–Heeger (SSH) Chain with an Embedded Aharonov–Bohm Quantum Ring

A variant of the SSH model consisting of an SSH chain with an embedded Aharonov-Bohm quantum ring is investigated. The embedded ring gives rise to domain wall states whose energy levels are in the band gap. The dependence of some of the states on the ring