15 citations · 22 across the 7 of their papers we have counts for
7 papers
Engineering photonic dispersion relation and atomic dynamics in waveguide QED setup via long-range hoppings
Weijun Cheng, Da-Wei Wang, Yang Xue +2
Non-trivial dispersion relations engineered in photonic waveguide for the precise control of atomic dynamics has recently attracted considerable attention. Here, we study a system…
Controllable single-photon wave packet scattering in two-dimensional resonator array by a giant atom
Weijun Cheng, Zhihai Wang, Yu-Xi Liu
Nonlocal interactions between photonic resonator array and giant atoms have attracted extensive attentions. Optimization and control of quantum states via giant atoms have been sho…
Superconducting giant atom waveguide QED: Quantum Zeno and Anti-Zeno effects in ultrastrong coupling regime
Xiaojun Zhang, Weijun Cheng, Zhirui Gong +2
The giant atom system is a new paradigm in quantum optics, in which the traditional dipole approximation is not available. In this paper, we construct an artificial giant atom mode…
Quantum interferometry for rotation sensing in an optical microresonator
Weijun Cheng, Zhihai Wang, Xiaoguang Wang
We theoretically propose a scheme to perform rotation sensing in a Whispering-gallery-mode resonator setup. With the assistance of a large detuned two-level atom, which induces the…
Witness of topological phase transition and Weyl points in an open topological system
Mingzhu Weng, Weijun Cheng, Zhihai Wang +1
Recently, the tunable Weyl-semimetal bands and the associate topological phase transition have been successfully simulated in superconducting quantum circuits [X. Tan, \textit{et a…
Quantum metrology enhanced by coherence-induced-driving in a cavity QED setup
Weijun Cheng, S. C. Hou, Zhihai Wang +1
We propose a quantum metrology scheme in a cavity QED setup to achieve the Heisenberg limit. In our scheme, a series of identical two-level atoms randomly pass through and interact…
Quantum beats and metrology in a rapidly rotating Nitrogen-Vacancy center
Weijun Cheng, Tian Tian, Zhihai Wang
In this paper, we study the dynamical behavior and quantum metrology in a rotating Nitrogen-Vacancy(NV) center system which is subject to an external magnetic field. Based on the r…