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quant-ph2026
Thouless pumping and generation of squeezed Fock-state superpositions in a Fock-state lattice
Ruo Kun Cai, Ling Lin, Chun Wang Wu +2
In this paper, Thouless pumping in a one-dimensional semi-infinite Fock-state lattice is investigated. A distinctive feature of such lattices is the intrinsic -dependent…
quant-ph2023
Floquet Engineering of Hilbert Space Fragmentation in Stark Lattices
Li Zhang, Yongguan Ke, Ling Lin +1
The concept of Hilbert space fragmentation (HSF) has recently been put forward as a routine to break quantum ergodicity. Although HSF exists widely in models with dynamical constra…
quant-ph2023
Calculations of Chern number: equivalence of real-space and twisted-boundary-condition formulae
Ling Lin, Yongguan Ke, Li Zhang +1
Chern number is a crucial invariant for characterizing topological feature of two-dimensional quantum systems. Real-space Chern number allows us to extract topological properties o…