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20042026
most citedCOVID-19 causes record decline in global CO2 emissions

825 citations

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20 papers · 1 filter

quant-ph2026★ 7 cited

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…

quant-ph2026★ 7 cited

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…

quant-ph2026★ 6 cited

Adjusting the left-handedness in a cold Rb atom via multiple parameter modulation

ShunCai Zhao. Qi-Xuan Wu, Kun Ma

We demonstrate the adjusting left-handedness in the cold \(^{87}\)Rb atom by its number density, the strong coupling field and two incoherent pumping fields. The results show that…

quant-ph2025

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…

quant-ph2025★ 2 cited

Energy-Invariant Catalysis of Stable Ergotropy in Strongly Coupled Spin-Chain Quantum Batteries

Zi-Yi Peng, Shun-Cai Zhao, Liang Luo +1

Quantum batteries (QBs) provide a platform for exploring quantum-scale energy storage, yet most existing analyses rely on weak-coupling and Markovian approximations. In realistic i…

quant-ph2025★ 12 cited

Non-Markovian N-spin chain quantum battery in thermal charging process

Shun-Cai Zhao, Zi-Ran Zhao, Ni-Ya Zhuang

Ergotropy serves as a key indicator for assessing the performance of quantum batteries(QBs). Using the Redfield master equation, we investigate ergotropy dynamics in a non-Markovia…

quant-ph2025

Rapid and Stable Collective Charging and Discharge Suppression in Strongly Coupled Many-Body Quantum Batteries

Shun-Cai Zhao, Yi-Fan Yang, Ni-Ya Zhuang

Achieving rapid and stable energy storage in quantum batteries (QBs) remains a key challenge, particularly under strong system-environment coupling where non-Markovian effects beco…

quant-ph2025★ 1 cited

Classical post-processing approach for quantum amplitude estimation

Yongdan Yang, Ruyu Yang

We propose an approach for quantum amplitude estimation (QAE) designed to enhance computational efficiency while minimizing the reliance on quantum resources. Our method leverages…

quant-ph2024

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-…

quant-ph2024★ 2 cited

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…

quant-ph2024★ 1 cited

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…

quant-ph2024★ 2 cited

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…

quant-ph2024★ 4 cited

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…

quant-ph2024★ 7 cited

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…

quant-ph2024

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…

quant-ph2024★ 1 cited

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…

quant-ph2024

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…

quant-ph2017★ 2 cited

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…

quant-ph2017★ 4 cited

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…

quant-ph2013★ 1 cited

Effect of decoherence on the Berry phase of a spin-half in a rotating magnetic field

Xin Li, Yu Shi

We investigate the decoherence effect of a bosonic bath on the Berry phase of a spin-1/2 in a time-dependent magnetic field, without making the Markovian approximation. A two-cycle…