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Single-photon manipulations based on optically-controlled chiral couplings in waveguide structures of Rydberg giant atoms
Yao-Tong Chen, Lei Du, Zhihai Wang +3
Two interacting Rydberg atoms coupled to a waveguide realize a giant-atom platform that exhibits the controllable (phase-dependent) chirality where the direction of nonreciprocal p…
Chiral phase modulation and tunable broadband perfect absorber using the coherent cold atomic ensemble
Yi-Xin Wang, Yan Zhang, Lei Du +1
We investigate the two-channel nonreciprocal scattering of a coherent atomic ensemble under the linear spatial Kramers-Kronig modulation, which has potential applications in chiral…
Giant Emitters in a Structured Bath with Non-Hermitian Skin Effect
Lei Du, Lingzhen Guo, Yan Zhang +1
Giant emitters derive their name from nonlocal field-emitter interactions and feature diverse self-interference effects. Most of the existing works on giant emitters have considere…
Amplifying Frequency Up-Converted Infrared Signals with a Molecular Optomechanical Cavity
Fen Zou, Lei Du, Yong Li +1
Frequency up-conversion, enabled by molecular optomechanical coupling, has recently emerged as a promising approach for converting infrared signals into the visible range through q…
Giant-Atom Effects on Population and Entanglement Dynamics of Rydberg Atoms
Yao-Tong Chen, Lei Du, Yan Zhang +4
Giant atoms are attracting interest as an emerging paradigm in the quantum optics of engineered waveguides. Here we propose to realize a synthetic giant atom working in the optical…
Experimental Implementation of Short-Path Non-adiabatic Geometric Gates in a Superconducting Circuit
Xin-Xin Yang, Liang-Liang Guo, Hai-Feng Zhang +8
The non-adiabatic geometric quantum computation (NGQC) has attracted a lot of attention for noise-resilient quantum control. However, previous implementations of NGQC require long…