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Schemes for Probabilistic Teleportation of a Three-Atom GHZ Class State via Cavity QED

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Communications in Theoretical physics 2007年第3X期48卷 435-440页

作者： WANG Yi-Cai LIU Jin-Ming key laboratory of Optical and magnetic resonance Spectroscopy Department of Physics East China Normal UniversityShanghai 200062 China

Using a quantum channel composed of a two-atom and a three-atom nonmaximally entangled states, we present two schemes to teleport a three-atom GHZ class state via entanglement swapping in cavity QED with different success probabilities. The schemes can be respectively realized with the large-detuned vacuum cavities and with the large-detuned thermal cavities by separate atomic measurements after we choose appropriate atom-cavity-field interaction time.

关键词： teleportation probabilistic entangled state cavity QED

Conformational Disorder Within the Crystalline Region of Silica-Filled Polydimethylsiloxane:A Solid-State NMR Study

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Chinese Journal of Polymer Science 2024年第11期 1780-1792页

作者： Yu-Qi Xiong Chang-Lin Li Ai Lu Liang-Bin Li Wei Chen National Synchrotron Radiation laboratory Anhui Provincial Engineering Laboratory of Advanced Functional Polymer FilmCAS Key Laboratory of Soft Matter ChemistryUniversity of Science and Technology of China Institute of Chemical Materials China Academy of Engineering Physics department of Accelerator Science and Engineering physics School of Nuclear Science and TechnologyUniversity of Science and Technology of China

The crystallization behavior of silica-filled polydimethylsiloxane （PDMS） was investigated in detail by1H solid-state nuclear magnetic resonance （1H SS-NMR） in combination with synchrotron radiation wide-angle X-ray scattering （WAXS）,and temperature-modulated differential scanning calorimetry （TMDSC） *** neat PDMS,no apparent difference is observed for the crystallinity characterized by1H SS-NMR and WAXS at low-temperature ***,upon filler addition,a 15%-35%lower difference in crystallinity is observed measured by1H SS-NMR compared to *** origin of such mismatch was explored through multi-component structural,dynamics,and chain-order analysis of PDMS samples with different filler *** 1D integrated WAXS results of PDMS with different filler fractions at different temperatures show that the packing structure as well as crystal size basically remain unchanged,but as the filler fraction increases from 0 phr to 60 phr,the rigid component’s dynamics order parameter Srobtained by1H SS-NMR decreases from 0.70 to *** filler fraction-dependent crystallinity calculated based on Srwas compared with experimental values,revealing a behavior of decreasing order in the crystalline *** with the results of accelerated chain dynamics in crystalline region as reflected by T2values,the molecular origin is attributed to the formation of CONDIS crystals,whose conformational order is lost but the position and orientation orders are *** hypothesis is further supported by the TMDSC results,where,as the filler fraction increases from 0 phr to 60 phr,the melting range widens from 8.77 K to 14.56 K,representing a growth of166%.In addition to previous reports related to the condition for forming CONDIS mesophase,i.e.,temperature,pressure,and stretching,the nano-sized filler could also introduce the local conformational disorder for chain packing.

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Electrostatic surface guiding of cold polar molecules with double charged wires

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Chinese Optics Letters 2005年第11期3卷 625-628页

作者：夏勇邓联忠刘金明印建平 key laboratory of Optical and magnetic resonance Spectroscopy department of physics East China Normal University Shanghai 200062

We propose a novel scheme to guide cold polar molecules on the surface of an insulating substrate （i.e.,a chip） using a static electric field generated by the combination of a pair of parallel charged wires and a grounded metal plate. We calculate the spatial distributions of the electric fields from the above charged-wire layout and their Stark potentials for cold CO molecules, and analyze the relationships between the electric field and the parameters of the charged-wire layout. The result shows that this charged-wire scheme can be used to guide cold polar molecules in the weak-field-seeking state and to form various molecule-optical elements, even to realize a single-mode molecular waveguide on a molecule chip under certain conditions.

关键词： Electric fields Electrostatics Molecules Surfaces Waveguides Wire

Passively Q-switched Nd:GdVO_4 solid-state lasers with stabilized repetition rates

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Chinese Optics Letters 2005年第9期3卷 520-523页

作者：潘海峰曾和平 key laboratory of Optical and magnetic resonance Spectroscopy and Department of PhysicsEast China Normal University Shanghai 200062

By modulating the pump current, we developed a passively Q-switched diode-pumped all-solid-state laser with a repetition rate stabilized up to 10^-7. It was experimentally demonstrated that the stability could sustain for an arbitrarily long time. Moreover, the stabilized repetition rates which were synchronized with different modulating frequencies were tuneable in a wide range, by adjusting the period of the pumping cycle only. The output single-pulse energy was also stabilized, which was independent on the pump power after reaching a saturable value.

关键词： YAG Nd Passively Q-switched Nd cycle rate

Study of tree shrew biology and models: A booming and prosperous field for biomedical research

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Zoological Research 2024年第4期45卷 877-909页

作者： Yong-Gang Yao Li Lu Rong-Jun Ni Rui Bi Ceshi Chen Jia-Qi Chen Eberhard Fuchs Marina Gorbatyuk Hao Lei Hongli Li Chunyu Liu Long-Bao Lv Kyoko Tsukiyama-Kohara Michinori Kohara Claudia Perez-Cruz Gregor Rainer Bao-Ci Shan Fang Shen An-Zhou Tang Jing Wang Wei Xia Xueshan Xia Ling Xu Dandan Yu Feng Zhang Ping Zheng Yong-Tang Zheng Jumin Zhou Jiang-Ning Zhou key laboratory of Genetic Evolution and Animal Models Yunnan Key Laboratory of Animal Models and Human Disease MechanismsKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650204China National Research Facility for Phenotypic&Genetic Analysis of Model Animals(Primate Facility) and National Resource Center for Non-Human PrimatesKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China KIZ-CUHK Joint laboratory of Bioresources and Molecular Research in Common Diseases Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650204China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650204China Mental Health Center and Psychiatric laboratory West China HospitalSichuan UniversityChengduSichuan 610041China Sichuan Clinical Medical Research Center for Mental Disorders ChengduSichuan 610044China German Primate Center Leibniz Institute of Primate ResearchGöttingen 37077Germany department of Optometry and Vision Science School of OptometryUniversity of Alabama at BirminghamBirminghamAL 35294USA State key laboratory of magnetic resonance and Atomic and Molecular physics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhanHubei 430071China Wuhan National laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanHubei 430074China Soong Ching Ling Institute of Maternity and Child Health International Peace Maternity and Child Health HospitalShanghai Jiao Tong University School of MedicineShanghai 200030China Transboundary Animal Diseases Center Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshima-cityKagoshima 890-8580Japan department of Microbiology and Cell Biology Tokyo Metropolitan Institute of Medical ScienceTokyo 156-8506Japan Pharmacology department CinvestavMexico City 07360Mexico department of Medicine University of FribourgFribourg CH-1700Switzerland Beijing Engineering Research Center of Radiog

The tree shrew(Tupaia belangeri)has long been proposed as a suitable alternative to non-human primates(NHPs)in biomedical and laboratory research due to its close evolutionary relationship with *** recent years,significant advances have facilitated tree shrew studies,including the determination of the tree shrew genome,genetic manipulation using spermatogonial stem cells,viral vector-mediated gene delivery,and mapping of the tree shrew brain ***,the limited availability of tree shrews globally remains a substantial challenge in the ***,determining the key questions best answered using tree shrews constitutes another *** shrew models have historically been used to study hepatitis B virus(HBV)and hepatitis C virus(HCV)infection,myopia,and psychosocial stress-induced depression,with more recent studies focusing on developing animal models for infectious and neurodegenerative *** these efforts,the impact of tree shrew models has not yet matched that of rodent or NHP models in biomedical *** review summarizes the prominent advancements in tree shrew research and reflects on the key biological questions addressed using this *** emphasize that intensive dedication and robust international collaboration are essential for achieving breakthroughs in tree shrew *** use of tree shrews as a unique resource is expected to gain considerable attention with the application of advanced techniques and the development of viable animal models,meeting the increasing demands of life science and biomedical research.

关键词： Tree shrew Animal model Neurodegenerative diseases Infectious diseases Neuroscience Phenome

magnetic focusing of cold atomic beam with a 2D array of current-carrying wires

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Chinese Optics Letters 2006年第9期4卷 497-500页

作者：刘泱恽旻印建平 key laboratory for Optical and magnetic resonance Spectroscopy department of physics East China Normal University key laboratory for Optical and magnetic resonance Spectroscopy department of physics East China Normal University

A new scheme to realize a two-dimensional （2D） array of magnetic micro-lenses for a cold atomic beam. formed by an array of square current-carrying wires, is proposed. We calculate the spatial distributions of the magnetic fields from the array of current-carrying wires and the magnetic focusing potential for cold rubidium atoms, and study the dynamic focusing processes of cold atoms passing through the mag- netic micro-lens array and its focusing properties by using Monte-Carlo simulations and trajectory tracing method. The result shows that the proposed micro-lens array can be used to focus effectively a cold atomic beam, even to load ultracold atoms or a BEC sample into a 2D optical lattice formed by blue detuned hollow beams.

关键词： magnetic focusing of cold atomic beam with a 2D array of current-carrying wires

Application of Laser magnetic resonance Spectroscopy to the Measurement of Electric Dipole Moment of Free Radicals

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Chinese physics Letters 2001年第6期18卷 774-775页

作者： LIU Yu-Yan GUO Yuan-Qing HUANG Guang-Ming LIN Jie-Li DUAN Chuan-Xi LI Feng-Yan LI Jin-Rui key laboratory for Optical and magnetic resonance Spectroscopy Department of PhysicsEast China Normal UniversityShanghai 200062 The State key laboratory of magnetic resonance and Atomic&Molecular physics Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan 430071 department of physics Huazhong Normal UniversityWuhan 430070

An intracavity CO laser magnetic resonance spectrometer with homogeneous dc electric field applied via a pair of parallel Stark plates in the absorption cell is used to measure the electric dipole moments of free *** advantage of high sensitivity and high resolution of this technique and the Stark effect,highly-resolved saturated absorption spectra of v=1-0 transition of ^(15)N^(16)O in the ground state X^(2)II_(3/2) have been successfully observed in the presence of a low electric *** electric dipole moment of NO in the electronic ground state is determined asμ=0.1566±14 D(Debye)from the analysis of the observed spectra,confirming that,combined with the Stark field,the laser magnetic resonance technique can be an effective and reliable approach for the precise measurement of electric dipole moments of free radicals,especially the unstable ones.

关键词： dipole absorption Stark

Probabilistic Teleportation of an Arbitrary Two-Atom State in Cavity QED

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Communications in Theoretical physics 2007年第3期47卷 446-450页

作者： LiU Jin-Ming key laboratory of Optical and magnetic resonance Spectroscopy Department of Physics East China Normal UniversityShanghai 200062 China

We propose a scheme for the teleportation of an arbitrary two-atom state by using two pairs of two-atom nonmaximally entangled states as the quantum channel in cavity QED. It is Shown that no matter whether the arbitrary two-atom pure state to be teleported is entangled or not, our teleportation scheme can always be probabilistically realized. The success prohability of teleportation is determined by the smaller coemcients of the two initially entangled atom pairs.

关键词： quantum teleportation arbitrary two-atom state cavity QED

Two-dimensional novel optical lattices with multi-well traps for cold atoms or molecules

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Chinese Optics Letters 2006年第12期4卷 683-686页

作者：陆俊发纪宪明印建平 key laboratory of Optical and magnetic resonance Spectroscopy Ministry of EducationDepartment of PhysicsEast China Normal UniversityShanghai 200062 Department of PhysicsEast China Institute of TechnologyFuzhou 344000 key laboratory of Optical and magnetic resonance Spectroscopy Ministry of EducationDepartment of PhysicsEast China Normal UniversityShanghai 200062 Department of PhysicsNantong UniversityNantong 226007 key laboratory of Optical and magnetic resonance Spectroscopy Ministry of EducationDepartment of PhysicsEast China Normal UniversityShanghai 200062

We propose some new schemes to constitute two-dimensional （2D） array of multi-well optical dipole traps for cold atoms （or molecules） by using an optical system consisting of a binary 7r-phase grating and a 2D array of rectangle microlens. We calculate the intensity distribution of each optical well in 2D array of multi-well traps and its geometric parameters and so on. The proposed 2D array of multi-well traps can be used to form novel 2D optical lattices with cold atoms （or molecules）, and form various novel optical crystals with cold atoms （or molecules）, or to perform quantum computing and quantum information processing on an atom chip, even to realize an array of all-optical multi-well atomic （or molecular） Bose- Einstein condensates （BECs） on an all-optical integrated atom （or molecule） chip.

关键词： well Two-dimensional novel optical lattices with multi-well traps for cold atoms or molecules