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| 1 | Generation of GHZ-like and cluster-like quadripartite entangled states for continuous variable using a set of quadrature squeezed states显示文摘We designed the experimental generation system of the optical GHZ-like and cluster-like quadripartite entangled states for continuous variables.We theoretically demonstrated that the two different types of quadripartite entangled states can be obtained by the linearly optical transformation of four amplitude-quadrature and phase-quadrature squeezed states produced from a pair of nondegenerate optical parametric amplifiers under appropriate phase relations.The criteria for full inseparability of quadripartite cluster-like state were deduced,and the dependency of the quadripartite entanglement on the initial squeezing degree,the transmission efficiencies of the system and the detection efficiency of homodyne detection were numerically calculated. | SU XiaoLong JIA XiaoJun XIE ChangDe PENG KunChi | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，1： | 12 |
| 2 | Quantum storage of optical signals and coherent manipulation of quantum states based on electromagnetically induced transparency显示文摘Electromagnetically induced transparency (EIT) techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this paper, we briefly summarize the recent experimental studies conducted by our group on enhanced cross-phase modulation based on double EIT effects, the quantum interference of stored dual-channel spin-wave excitations and the coherent manipulation of the spin wave vector for the polarization of photons in a single tripod atomic system. The work presented here has potential application in the developing field of quantum information processing. | WANG Hai XIE ChangDe PENG KunChi | 2012 | Chinese Science Bulletin2012，57，16： | 4 |
| 3 | Preparation of multipartite entangled states used for quantum information networks显示文摘The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation.In this paper,we review the experimental progress in the preparation of cluster states and multi-color entangled states with continuous variables.The preparation of lager scale multipartite entangled state provide valuable quantum resources to implement more complex quantum informational tasks. | SU XiaoLong JIA XiaoJun XIE ChangDe PENG KunChi | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，7： | 4 |
| 4 | Quantum network based on non-classical light显示文摘Quantum network enables quantum communication among quantum nodes and provides advantages that are unavailable in any classical network.Based on rapidly developing science and technology in quantum communication,the studies on quantum network have also made important progresses recent years.In this study,we briefly review the experimental progresses in building quantum network based on optical field and discuss the challenges toward a quantum Internet. | Xiaolong SU Meihong WANG Zhihui YAN Xiaojun JIA Changde XIE Kunchi PENG | 2020 | Science China(Information Sciences)2020，63，8： | 3 |
| 5 | Quantum variances and squeezing of output field from NOPA 显示文摘 | SU Hong XIE Changde | 1999 | Phys Lett A1999，259，： | 1 |
| 6 | Entanglement swapping using nondegenerate optical parametric amplifier 显示文摘 | XIE Changde PENG Kunchi | 2002 | Phys Lett A2002，299，： | 1 |
| 7 | CW Self-Frequency-Doubling Laser Operating on Nd:MgO:LiNbO_(3) High-Gain Polarization显示文摘The CW second-harmonic wave of high-gain polarization atλ=l.085μm was demonstrated with Nd:MgO:LiNbO_(3) self-frequency-doubling laser cavity inserted with a quarter wave-plate of the fundamental wavelength.The pump power threshold for the second-harmonic generation as low as 9.9mW was achieved.The maximum second-harmonic output was 11.4 m W,the conversion efficiency for the total second-harmonic output was 11.3%per Watt. | LI Ruining WANG Junmin LIANG Xiaoyan XIE Changde PENG Kunchi XU Guanfeng | 1993 | Chinese Physics Letters1993，10，4： | 0 |
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