112 citations · 419 across the 11 of their papers we have counts for
11 papers
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…
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…
Light transfer transitions beyond higher-order exceptional points in parity-time and anti-parity-time symmetric waveguide arrays
Chuanxun Du, Gang Wang, Yan Zhang +1
We propose two non-Hermitian arrays consisting of waveguides and exhibiting parity-time () or anti- symmetry for investigating light transfer d…
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 with time-dependent couplings
Lei Du, Yao-Tong Chen, Yan Zhang +1
We study the decay dynamics of a two-level giant atom that is coupled to a waveguide with time-dependent coupling strengths. In the non-Markovian regime where the retardation effec…
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…
Spatial Kramers-Kronig relation and unidirectional light reflection induced by Rydberg dipole-dipole interactions
Di-Di Zheng, Yan Zhang, Yi-Mou Liu +2
Kramers-Kronig (KK) relation between the dispersion and absorption responses of a signal field can be mapped from the frequency domain into the space domain via the dipole-dipole i…
Perfect Transfer of enhanced entanglement and asymmetric steering in a cavity magnomechanical system
Yao-Tong Chen, Lei Du, Yan Zhang +1
We propose a hybrid cavity magnomechanical system to realize and transfer the bipartite entanglements and Einstein-Podolsky-Rosen (EPR) steerings between magnons, photons, and phon…
Spatial Kramers-Kronig relation and controlled unidirectional reflection in cold atoms
Yan Zhang, Jin-Hui Wu, M. Artoni +1
We propose a model for realizing frequency-dependent spatial variations of the probe susceptibility in a cold atomic sample. It is found that the usual Kramers-Kronig (KK) relation…
Controllable unidirectional transport and photon storage in an one-dimensional lattice with complex hopping rates
Lei Du, Yan Zhang
We study an one-dimensional non-Hermitian lattice with complex hopping rates, which can be realized by a quasi-one-dimensional sawtooth-type Hermitian lattice after adiabatic elimi…
All-optical photon transmission switching in a passive-active optomechanical system
Lei Du, Yi-Mou Liu, Yan Zhang +1
We propose a feasible scheme to realize all-optical photon transmission switching in a passiveactive optomechanical system, consisting of one ordinary passive cavity, one active ca…