112 citations · 357 across the 8 of their papers we have counts for
8 papers · 1 filter
Single-photon scattering in giant-atom waveguide systems with chiral coupling
Shu-Yu Li, Ze-Quan Zhang, Lei Du +2
We study single-photon scattering spectra of a giant atom chirally coupled to a one-dimensional waveguide at multiple connection points, and examine chirality induced effects in th…
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…
Decay dynamics of a giant atom in a structured bath with broken time-reversal symmetry
Lei Du, Yao-Tong Chen, Yan Zhang +2
We study in this paper the decay dynamics of a two-level giant atom, which is coupled to a quasi-one-dimensional sawtooth lattice exposed to uniform synthetic magnetic fluxes. In t…
Enhanced sensing of optomechanically induced nonlinearity by linewidth suppression and optical bistability in cavity-waveguide systems
Chun-Wang Liu, Ye Liu, Lei Du +3
We study enhanced sensing of optomechanically induced nonlinearity (OMIN) in a cavity-waveguide coupled system. The Hamiltonian of the system is anti-PT symmetric with the two invo…
Complex decoherence-free interactions between giant atoms
Lei Du, Lingzhen Guo, Yong Li
Giant atoms provide a promising platform for engineering decoherence-free interactions which is a major task in modern quantum technologies. Here we study systematically how to imp…
A giant atom with modulated transition frequency
Lei Du, Yan Zhang, Yong Li
Giant atoms are known for the frequency-dependent spontaneous emission and associated interference effects. In this paper, we study the spontaneous emission dynamics of a two-level…
Nonreciprocal and chiral single-photon scattering for giant atoms
Yao-Tong Chen, Lei Du, Lingzhen Guo +4
Quantum optics with giant atoms has provided a new paradigm to study photon scatterings. In this work, we investigate the nontrivial single-photon scattering properties of giant at…
Giant Atoms in a Synthetic Frequency Dimension
Lei Du, Yan Zhang, Jin-Hui Wu +2
Giant atoms that interact with real-space waveguides at multiple spatial points have attracted extensive attention due to their unique interference effects. Here we propose a feasi…