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quant-ph2022★ 15 cited
Topological invariants for interacting systems: from twisted boundary condition to center-of-mass momentum
Ling Lin, Yongguan Ke, Chaohong Lee
Beyond the well-known topological band theory for single-particle systems, it is a great challenge to characterize the topological nature of interacting multi-particle quantum syst…
quant-ph2022★ 5 cited
Stable interaction-induced Anderson-like localization embedded in standing waves
Na Zhang, Yongguan Ke, Ling Lin +2
We uncover the interaction-induced \emph{stable self-localization} of bosons in disorder-free superlattices. In these nonthermalized multi-particle states, one of the particles for…