24 citations · 184 across the 35 of their papers we have counts for
17 papers · 1 filter
Negative refraction with low absorption using EIT in a four-level left-handed atomic system
Shun-Cai Zhao, Zheng-Dong Liu, Gen Li +1
We suggest a scheme for obtaining negative refraction with low absorption in a left-handed atomic system.Under the the appropriate conditions,the atomic system displays negative re…
Negative refraction with absorption suppressed by electromagneticly induced transparency in a left-handed atomic system
Shun-Cai Zhao
This paper intends to realize negative refraction with absorption suppressed by the electromagneticly induced transparency(EIT) in a dense four-level atomic system. Without the two…
Left handness in a four-level atomic system
Shuncai Zhao, Zhengdong Liu
A scheme is proposed for realizing simultaneous negative permittivity and negative permeability based on quantum coherence in a four-level dense atomic system here.Under some param…
Transient energy backflow enhanced ergotropy in an open qubit quantum battery assisted by an auxiliary oscillator
Shun-Cai Zhao
Decoherence and dissipation in open quantum systems generally drive quantum batteries toward passive states, thereby reducing their extractable work (ergotropy). Here, we study a d…
2D isotropic negative permeability in a Λ-type three-level atomic system
Shuang-Ying Zhang, Shun-Cai Zhao, Ai-Ling Gong
A approach for two-dimensional(2D) negative permeability in a -type three-level atomic system interacting with a probe magnetic and the superposition of two orthogonal standing-…
Negative refraction index manipulated by a displaced squeezed Fock state in the mesoscopic dissipative left-handed transmission line
Hong-Wei Guo, Shun-Cai Zhao, Xiao-Jing Wei
Negative refractive index (NRI) of the mescopic dissipative left-handed transmission line (LHTL) is manipulated by the displaced squeezed Fock state (DSFS) and the dissipation pres…
2-D isotropic negative refractive index in a N-type four-level atomic system
Shun-Cai Zhao, Qi-Xuan Wu, Kun Ma
2-D(Two-dimensional) isotropic negative refractive index (NRI) is explicitly realized via the orthogonal signal and coupling standing-wave fields coupling the N-type four-level ato…
Effect of Spontaneously Generated Coherence and Detuning on 2D Atom Localization in Two Orthogonal Standing-Wave Fields
Shun-Cai Zhao, Qi-Xuan Wu, Ai-Ling Gong
Two-dimensional (2D) atom localization via the spontaneously generated coherence (SGC) and detunings associated with the probe and standing-wave driving fields in a three-level V-t…
Left-handedness with three zero-absorption windows tuned by the incoherent pumping field and inter-dot tunnelings in a GaAs/AlGaAs triple quantum dots system
Shun-Cai Zhao, Shuang-Ying Zhang, Qi-Xuan Wu +1
Left-handedness with three zero-absorption windows is achieved in a triple-quantum dot (TQD) system. With the typical parameters of a GaAs/AlGaAs heterostructure, the simultaneous…
Effect of spontaneously generated coherence on left-handedness in a degeneracy atomic system
Shun-Cai Zhao
A theoretical investigation is carried out into the effect of spontaneously generated coherence(SGC) on the left-handedness in a four-level Y-type atomic system with two highest ne…
Negative refraction without absorption via both coherent and incoherent fields in a four-level left-handed atomic system
Shun-Cai Zhao, Zheng-Dong Liu, Qi-Xuan Wu
This paper attempts a probe into negative refraction without absorption by means of an incoherent pump field and a strong coherent field coupling the dense four-level atomic system…
Zero absorption and large negative refractive index in a left-handed four-level atomic media
Shuncai Zhao, Zhengdong Liu, Qixuan Wu
In this paper,we have investigated three external fields interacting with the four-level atomic system described by the density-matrix approach.The atomic system exhibits left-hand…
Localization of cold atom within half-wavelength domain
Shun-Cai Zhao, Xin Li, Ping Yang
Simulating the cold atom with a three-level quantum system interacting with two orthogonal standing-wave fields, the localization within half-wavelength domain in the x-y…
Algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic system
Shun-Cai Zhao, Qi-Xuan Wu, Ai-Ling Gong
This paper presents a algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic medium. According to analyze mathematically its argum…
Dual peaks evoluting into single-peak for sub-wavelength 2-D atom localization in a V-type atomic system
Shun-Cai Zhao, Xin Li, Ping Yang
The atom localization of a V-type atomic system is discussed by the detunings associated with the probe and the two orthogonal standing-wave fields, and by the spontaneously genera…
The thermal effect on the left-handedness of the mesoscopic composite right-Left handed transmission line
Xiao-Jing Wei, Shun-Cai Zhao, Hong-Wei Guo
Starting from the quantum fluctuation of current in the mesoscopic composite right-left handed transmission line (CRLH-TL) in the thermal Fock state, we investigate the left-handed…
Negative refraction index of the mesoscopic left-handed transmission line in the thermal Fock state
Shun-Cai Zhao
Negative refractive index (NRI) of the quantized lossless mesoscopic left-handed transmission line (LHTL) is deduced numerically in thermal Fock state. Some specific quantum featur…