Interaction-induced doublons in a ring lattice with OAM map to effective SSH chains and Creutz ladders that support topologically protected edge states.
2(b), all the sites in the effective chain ˆHeff,1 l=0,1 in Eq
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Topological bound states in a lattice of rings with nearest-neighbour interactions
Interaction-induced doublons in a ring lattice with OAM map to effective SSH chains and Creutz ladders that support topologically protected edge states.