23 citations · 53 across the 11 of their papers we have counts for
12 papers
Synchronized Spin Trajectories under Collective Weak Measurements
Yiwen Han, Konghao Sun, Wei Yi +1
We consider locally driven-dissipative quantum spins that undergo a continuous weak measurement of their collective spin. We show that such a system can exhibit full spin-synchroni…
Higher-order Liouvillian exceptional points in the dissipative dynamics of quadratic fermions
Mingtao Xu, Wei Yi
We propose a general class of open fermionic models where quadratic Liouvillians governing the dissipative dynamics feature analytically characterized higher-order exceptional poin…
Parametrically Driven Superradiance of an Interacting Tavis-Cummings Model
Wen-Jie Geng, Yiwen Han, Wei Yi
We consider the superradiant transition of a generalized Tavis-Cummings model, where a number of two-level qubits are coupled to a dissipative cavity. The cavity is coherently driv…
Cavity-Mediated Gas-Liquid Transition
Fan Zhang, Haowei Li, Wei Yi
We study the gas-liquid transition in a binary Bose-Einstein condensate, where the two Zeeman-shifted hyperfine spin components are coupled by cavity-assisted Raman processes. Belo…
Bridging the classical and quantum regimes in a dissipative Ising chain
Zhenming Zhang, Haowei Li, Wei Yi
We study the long-time dynamics of a dissipative Ising chain with varying quantum correlation. Invoking an ensemble-average formalism, and assuming spatial translation symmetry, we…
Symmetry-induced fragmentation and dissipative time crystal
Haowei Li, Wei Yi
Time crystals are a peculiar state of matter. Their emergence hinges on ergodicity breaking, which typically originates from many-body localization or Floquet prethermalization. He…
Encircling the Liouvillian exceptional points: a brief review
Konghao Sun, Wei Yi
Exceptional points are the branch-point singularities of non-Hermitian Hamiltonians, and have rich consequences in open-system dynamics. While the exceptional points and their crit…
Interaction-Enhanced Superradiance of a Ryderg-Atom Array
Yiwen Han, Haowei Li, Wei Yi
We study the superradiant phase transition of an array of Rydberg atoms in a dissipative microwave cavity. Under the interplay of the cavity field and the long-range Rydberg intera…
Chiral switching of many-body steady states in a dissipative Rydberg gas
Chongwu Xie, Konghao Sun, Kang-Da Wu +4
Dissipative Rydberg gases are an outstanding platform for the investigation of many-body quantum open systems. Despite the wealth of existing studies, the non-equilibrium dynamics…
Collective quantum stochastic resonance in Rydberg atoms
Haowei Li, Konghao Sun, Wei Yi
We study the collective response of a group of dissipative Rydberg atoms to a periodic modulation of the Rydberg excitation laser. Focusing on the emergent collective-jump dynamics…
Tuning excitation transport in a dissipative Rydberg ring
Yiwen Han, Wei Yi
We demonstrate the flexible tunability of excitation transport in Rydberg atoms, under the interplay of controlled dissipation and interaction-induced synthetic flux. Considering a…
Recent Advances for Quantum Neural Networks in Generative Learning
Jinkai Tian, Xiaoyu Sun, Yuxuan Du +11
Quantum computers are next-generation devices that hold promise to perform calculations beyond the reach of classical computers. A leading method towards achieving this goal is thr…