63 citations · 205 across the 26 of their papers we have counts for
8 papers · 1 filter
Photon-mediated localization in two-level qubit arrays
Janet Zhong, Nikita A. Olekhno, Yongguan Ke +4
We predict the existence of a novel interaction-induced spatial localization in a periodic array of qubits coupled to a waveguide. This localization can be described as a quantum a…
Modulation-induced long-range magnon bound states in one-dimensional optical lattices
Wenjie Liu, Yongguan Ke, Bo Zhu +1
Ultracold two-level atoms in optical lattices offer an excellent experimental platform to explore magnon excitations [Fukuhara et al 2013 Nat. Phys. 9, 235; Fukuhara et al 2013 Nat…
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-…
Magnetic phase transitions of insulating spin-orbit coupled Bose atoms in one-dimensional optical lattices
Li Zhang, Yongguan Ke, Chaohong Lee
We consider the insulating spin-orbit coupled Bose atoms confined within one-dimensional optical lattices and explore their ground-state magnetic phase transitions. Under strong in…
Inelastic scattering of photon pairs in qubit arrays with subradiant states
Yongguan Ke, Alexander V. Poshakinskiy, Chaohong Lee +2
We develop a rigorous theoretical approach for analyzing inelastic scattering of photon pairs in arrays of two-level qubits embedded in a waveguide. Our analysis reveals strong enh…
Dynamic winding number for exploring band topology
Bo Zhu, Yongguan Ke, Honghua Zhong +1
Topological invariants play a key role in the characterization of topological states. Due to the existence of exceptional points, it is a great challenge to detect topological inva…