64 citations · 147 across the 6 of their papers we have counts for
6 papers
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…
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…
Real-space representation of winding number for one-dimensional chiral-symmetric topological insulator
Ling Lin, Yongguan Ke, Chaohong Lee
The winding number has been widely used as an invariant for diagnosing topological phases in one-dimensional chiral-symmetric systems. We put forward a real-space representation fo…
Projection Method for Saddle Points of Energy Functional in Metric
Shuting Gu, Ling Lin, Xiang Zhou
Saddle points play important roles as the transition states of activated process in gradient system driven by energy functional. However, for the same energy functional, the saddle…
Interaction-induced topological bound states and Thouless pumping in a one-dimensional optical lattice
Ling Lin, Yongguan Ke, Chaohong Lee
We study topological features of interacting spin- 1 2 particles in one-dimensional state-dependent optical lattices. Due to the co-translational symmetry, we introduce the center-…
Hybrid atom-molecule quantum walks in one-dimensional optical lattice
Ling Lin, Yongguan Ke, Chunshan He +1
We study hybrid atom-molecule quantum walks in one-dimensional optical lattices with two interacting bosonic atoms which may be converted into a molecule. The hybrid atom-molecule…