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Exotic structure of the third excited state in^(2.)Na

Chinese science Bulletin 2005年第23期50卷 2677-2680页

作者： LI Xihan1,2.3, LIANG Yujie1,2.3, DENG Fuguo1,2.3, LIU Zuhua1,4.& ZHOU Hongyu1,2.3 1. Key Laboratory of Beam Technology and {4. Modification of Minister of Education, Beijing normal {2., Beijing 100875, China 2. institute of low energy nuclear physics, and department of material science and engineering, Beijing normal {2., Beijing 100875, China 3. Beijing Radiation Center, Beijing 100875, China 4. China {14. of Atomic energy, Beijing 102.13, China Key Laboratory of Beam Technology and material Modification of Minister of Education Beijing Normal University Beijing 100875 China institute of low {2. {2. {4. and Department of Material Science and Engineering Beijing Normal University Beijing 100875 China Beijing Radiation Center Beijing 100875 China China institute of Atomic energy Beijing 102413 China

The probability of the last proton being out of the binding potential, P and the root-mean-square (rms) ra- dius (1/2. of the third excited state in 2.Na are calcu- lated by means of asymptotic normalization coefficie... 详细信息

The probability of the last proton being out of the binding potential, P and the root-mean-square (rms) ra- dius (2.1/2. of the third excited state in 2.Na are calcu- lated by means of asymptotic normalization coefficient (ANC) method with the experimental date existing. The results are P=54.73% and 2.1/2.5.2. fm respectively. The P value and the contribution of the asymptotic part to the 2.1/2.are compared with those of several other low {2. states in 2.Na. It is found that the valence particle in the third excited state has an obvious larger P than those of other states. The density distribution of the valence proton in this state is also compared with the nucleons in the {2. core 2.Ne, and a far extended tail can be seen clearly. These results show that the third ex- cited state in 2.Na is a proton halo state.

关键词：钠第三激发态外部结构有效半径密度分布渐近标准化系数

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Complete multiple round quantum dense coding with quantum logical network

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Chinese science Bulletin 2007年第9期52卷 1162-1165页

作者： LI ChunYan1,2.LI XiHan1,2.DENG FuGuo1,2.3,ZHOU Ping1,2.& ZHOU HongYu1,2.3 1 Key Laboratory of Beam Technology and material Modification of Ministry of Education,Beijing normal {2.,Beijing 100875,China 2.institute of low energy nuclear {14.,and department of material science and {12.,Beijing normal {2.,Beijing 100875,China 3 Beijing Radiation Center,Beijing 100875,China Key Laboratory of Beam Technology and material Modification of Ministry ofEducation Beijing Normal University Beijing 100875 China

We present a complete multiple round quantum dense coding scheme for improving the source ca-pacity of that introduced recently by Zhang et al. The receiver resorts to two qubits for storing the four local unitary ope... 详细信息

关键词：量子通信多重量子紧凑编码量子逻辑网络量子纠缠

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Synthesis of superheavy nuclei with ^(2.8)U target

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science China(physics,Mechanics & Astronomy) 2009年第10期52卷 1482-1488页

作者： LIU ZuHua1,3 & BAO JingDong2.4.1 Key Laboratory of Beam Technology and material Modification of Ministry of Education,Beijing normal {2.,Beijing {4.,China 2.department of physics,Beijing normal {2.,Beijing {4.,China 3 China institute of Atomic energy,Beijing 102.13,China 4.Center of Theoretical {14. physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China Key Laboratory of Beam Technology and material Modification of Ministry of Education Beijing Normal University Beijing 100875 China department of physics Beijing Normal University Beijing 100875 China China institute of Atomic energy Beijing 102413 China Center of Theoretical nuclear physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China

The production of superheavy nuclei with Z=108-116 via hot fusion reactions of the neutron-rich projectiles with 2.8U target is systematically *** results show that the production cross sections of superheavy nuclei do not decrease monotonously as the atomic number Z *** cross sections of the superheavy nuclei at Z = 112.and 115 are enhanced as compared with the whole Z-trend in synthesis of the superheavy nuclei,which clearly illustrates that the reactions with large negative Q-value and shell correction are more favorable to synthesize superheavy nuclei.

关键词： superheavy nuclei fusion reaction cross section 2.8U target

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fMRI time series analysis based on stationary wavelet and spectrum analysis

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Progress in Natural science:materials International 2006年第11期16卷 1171-1176页

作者： ZHI Lianhe~ 1,2.3 , ZHAO Xia~4. SHAN Baoci~1**, PENG Silong~5, YAN Qiang~1, YUAN Xiuli~1 and TANG Xiaowei~ 1,6 (1. Key Laboratory of nuclear Analysis Techniques, institute of High {2. {4., Chinese Academy of sciences, Beijing 10004., China 2. Graduate School of Chinese Academy of sciences, Beijing 10004., China 3. department of {4., Zhoukou normal university, Zhoukou 4.6100, China 4. Research Imaging Center, university of Texas Health science Center, San Antonio, Texas 782.9, USA 5. National ASIC Design and {12. Center, institute of Automation, Chinese Academy of sciences, Beijing 10004., China 6. department of {4., Zhejiang university, Hangzhou 31002., China) [a]Key Laboratory of nuclear Analysis Techniques Institute of High Energy Physics Chinese Academy of Sciences Beijing China [b]Graduate School of Chinese Academy of sciences Beijing China [c]department of physics Zhoukou Normal University Zhoukou China [d]Research Imaging Center University of Texas Health Science Center San Antonio Texas USA [e]National ASIC Design and engineering Center Institute of Automation Chinese Academy of Sciences Beijing China [f]department of physics Zhejiang University Hangzhou China

The low signal to noise ratio (SNR) of functional MRI (fMRI) prefers more sensitive data analysis methods. Based on stationary wavelet transform and spectrum analysis, a new method with high detective sensitivity was developed for analyzing fMRI time series, which does not require any prior assumption of the characteristics of noises. In the proposed method, every component of fMRI time series in the different time-frequency scales of stationary wavelet transform was discerned by the spectrum analysis, then the components from noises were removed using the stationary wavelet transform, finally the components of real brain activation were detected by cross-correlation analysis. The results obtained from both simulated and in vivo visual experiments illustrated that the proposed method has much higher sensitivity than the traditional cross-correlation method.

关键词： fMRI stationary wavelet transform spectrum analysis data analysis.

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Fuzzy cluster analysis of the provenance of ancient Yaozhou porcelain body

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Chinese science Bulletin 2003年第1期48卷 27-30页

作者： LI Guoxia1, ZHAO Weijuan1, LI Rongwu2. XIE Jianzhong1, FENG Songlin3, FAN Dongyu3, ZHANG Ying3, CAI Zhifang3, ZHUO Zhenxi4.& GAO Zhengyao1 1. Faculty of Physical engineering, Zhengzhou university, Zhengzhou 4.0052. China 2. {2. of physics, Beijing normal university, Beijing 100875, China 3. High energy physics institute, the Chinese Academy of sciences, Beijing 100080, China 4. Archaeology Research institute, Shanxi Province, Xian 710000, China Correspondence should be addressed to Li Guoxia (e-mail: Liguoxia@ ***) Faculty of Physical engineering Zhengzhou University Zhengzhou 450052 China department of physics Beijing Normal University Beijing 100875 China High energy physics {2. Chinese Academy of Sciences Beijing 100080 China Archaeology Research institute Shanxi Province Xi'an 710000 China

The technique of neutron activation analysis (NAA) has been employed to measure the content of 2. kinds of elements in the sample of Yaozhou porcelain bodies. Then a fuzzy cluster analysis has been conducted to the NAA data and a diagram of the dynamic fuzzy cluster analysis has been achieved. The results indicate that the batch of ancient Yaozhou porcelain bodies, which were of different overglaze color and were produced by different kilns during a period of over 800 years from the Tang Dynasty (618—907 A.D.) to the Yuan Dynasty (12.1—1368 A.D.), has shared a stable and concentrated raw material source. Provenances of por-celain bodies from different times, though having their spe-cific independence, enjoy a close relationship and are not far from one another. Provenances of porcelain bodies made during the Tang Dynasty and the Five Dynasties (907—960 A.D.) are found to be closer to one another, while those of the Song (960—12.9 A.D.) and the Jin Dynasty (1115—12.4.A.D.) are comparatively concentrated in certain areas and are dif-ferent from those of the Tang Dynasty. Both the tri-colored glazed pottery made in Yaozhou kilns during the Tang Dy-nasty and the Yaozhou porcelain bodies of the Tang period are from the same provenance.

关键词：古代姚州瓷胎窑址粘土矿原料来源中子活化分布模糊聚类分析

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Anomalous magnetotransport in LaMn_(1-x)Te_xO_3

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science China(physics,Mechanics & Astronomy) 2009年第7期52卷 987-992页

作者： TAN GuoTai1,2. CHEN ZhengHao3 & ZHANG XiaoZhong4.5 1 Key Laboratory of Beam Technology & materials Modification of the Ministry of Education, institute of {2. {4. nuclear physics, Beijing normal university, Beijing 100875, China 2.Beijing Radiation Center, Beijing 100875, China 3 Laboratory of Optical physics, institute of physics, Chinese Academy of sciences, Beijing 100080, China 4.Key Laboratory of Advanced materials of the Ministry of Education, department of materials science and engineering, Tsinghua university, Beijing 100084. China 5 Beijing National Center for Electron Microscopy, Tsinghua university, Beijing 100084. China 1. Key Laboratory of Beam Technology & materials Modification of the Ministry of Education Institute of Low Energy Nuclear Physics Beijing Normal University Beijing 100875 China 2. Beijing Radiation Center Beijing 100875 China 3. Laboratory of Optical physics Institute of Physics Chinese Academy of Sciences Beijing 100080 China 4. Key Laboratory of Advanced materials of the Ministry of Education Department of Materials Science and Engineering Tsinghua University Beijing 100084 China 5. Beijing National Center for Electron Microscopy Tsinghua University Beijing 100084 China

The LaMn1-xTexO3+δ (x=0.1, 0.2. 0.3) were synthesized using solid-state reaction method for the first time. X-ray photoemission spectrum (XPS) shows that in the samples the Te ions have a valence of Te4., and Mn3+ ions are partly converted into Mn2. and Mn4. due to the excess oxygen and Te doping. The magnetotransport associated with Mn2., Mn3+ and Mn4. was investigated. The experimental results show that the samples are insulator at 0 T when the amount of Mn3+ is much larger or less than the sum of Mn2. and Mn4.; by contrast, the samples display metal to insulator transition with increasing temperature when the amount of Mn3+ is close to the sum of Mn2. and Mn4.. These anomalous magnetotransport behaviors were analyzed in the frame of the double-exchange (DE) mechanism.

关键词： colossal magnetoresistance La-Te-Mn-O magnetotransport

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Further research on high-spin structure in ^(161)Lu

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science China(physics,Mechanics & Astronomy) 2008年第3期51卷 315-320页

作者： LI YanXia1,2.YU ShaoYing1,2.4.SHEN CaiWan1,5,LI XiaoWei6 & CHEN YongShou3,4.1 School of science,Huzhou Teachers College,Huzhou 313000,China 2.College of Mathematics,{4. and Information {2.,Zhejiang normal university,Jinhua 32.000,China 3 China institute of Atomic energy,Beijing 102.13,China 4.institute of Theoretical {4.,Chinese Academy of sciences,Beijing 100080,China 5 Center of Theoretical nuclear {4.,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China 6 {12. of {4.,Chifeng university,Chifeng 02.001,China School of science Huzhou Teachers College Huzhou 313000 China College of Mathematics Physics Information engineering Zhejiang Normal University Jinhua 321000 China China institute of Atomic energy Beijing 102413 China institute of Theoretical physics Chinese Academy of Sciences Beijing 100080 China Center of Theoretical nuclear physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China department of physics Chifeng University Chifeng 024001 China

The two-dimensional total routhian surface (TRS) calculations were performed to probe into the triaxial superdeformed characteristics of a strongly populated band X2.in 161Lu. This band was identified as a triaxial superdeformed band by using our TRS method. We also got its formation mechanics,i.e. the neutron-shell correction energy plays a crucial role,while the rotating energy and the deformation-driving effect of high j intruder orbit i13/2.also play an additional role.

关键词： TRS method triaxial superdeformation formation mechanism

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The study of energy bands in nucleus ^(102.Zr

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science China(physics,Mechanics & Astronomy) 2010年第1期53卷 106-110页

作者： DONG GuoXiang 1,2., YU ShaoYing 1,2.3 , LIU YanXin 1 , SHEN CaiWan 1,2.4.& DONG YongSheng 1,2.5I School of {4., Huzhou Teachers College, Huzhou 313000, China 2.School of {4. and Information {2., Zhejiang normal university, Jinhua 32.000, China 3 institute of Theoretical physics, Chinese Academy of {4.s, Beijing 100080, China 4.Center of Theoretical {14. physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China 5 department of physics, Jining Teachers College, Jining 012.00, China 1. School of science Huzhou Teachers College Huzhou 313000 China2. School of Science and Information Engineering Zhejiang Normal University Jinhua 321000 China3. Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100080 China4. Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China5. Department of Physics Jining Teachers College Jining 012000 China

Theoretical calculations of the energy bands in nucleus 102.Zr are carried out by taking the projected shell model approach, which has reproduced the experimental data. In addition, by analyzing band-head energies, corresponding configurations of yrast band, quasi-particle rotational bands and side bands, we have worked out the microscopic formation mechanism of axially symmetric deformation bands: The low-excitation deformation bands are attributed to the high-j intruder states 1g 7/2.and 1h 11/2.in the N=4. 5 shells; the quasi-particles in the orbit v5/2.[532., v3/2.[4.1] and v3/2.[4.3] in particular play an important role in the deformation of 102.Zr.

关键词： projected shell model yrast band quasi-particle rotational band side band

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Multiparty quantum secret sharing of classical and quantum messages

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Progress in Natural science:materials International 2007年第1期17卷 26-31页

作者： CHEN Pan, DENG Fuguo and LONG Guilu ( Key Laboratory for Quantum Information and Measurements, and department of physics, Tsinghua {2., Beijing 100084. China Key Laboratory of Beam Technology and material Modification, MOE, {4. of low energy nuclear physics, and department of material science and engineering, Beijing normal {2., Beijing {12., China Beijing Radiation Center, Beijing {12., China Key Laboratory for Atomic and Molecular Nano-{14.s, Tsinghua {2., Beijing 100084. China) [a]Key Laboratory for Quantum Information and Measurements and Department of Physics Tsinghua University Beijing China [b]Key Laboratory of Beam Technology and material Modification MOE Institute of Low Energy Nuclear Physics and Department of Material Science and Engineering Beijing Normal University Beijing China [c]Beijing Radiation Center Beijing China [d]Key Laboratory for Atomic and Molecular Nano-sciences Tsinghua University Beijing China

A scheme for multiparty quantum secret sharing of classical and quantum messages is proposed by using entanglement swapping. This scheme can distribute not only the classical information but also the quantum informati... 详细信息

关键词： quantum secret sharing classical message quantum message EPR pair.

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Zn空位缺陷ZnS的电子状态、磁性质与光学性质研究

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量子电子学报 2018年第4期35卷 507-512页

作者：韦树贡房慧王如志李凡生黄灿胜郝五零孙毅广西民族师范学院物理与电子工程学院广西崇左532200 北京工业大学材料科学与工程学院北京100124 云南师范大学数学学院云南昆明650500 昌吉学院物理系新疆昌吉831100

基于密度泛函理论第一性原理,研究了Zn空位缺陷对ZnS半导体材料电子状态、磁性质和光学性质的影响.结果表明Zn空位缺陷浓度为6.2.%时,ZnS半导体材料仍呈直接带隙型能带结构,带隙较本征ZnS半导体增大了6.4.,达到2.19 eV.缺陷体系s态、p... 详细信息

基于密度泛函理论第一性原理,研究了Zn空位缺陷对ZnS半导体材料电子状态、磁性质和光学性质的影响.结果表明Zn空位缺陷浓度为6.2.%时,ZnS半导体材料仍呈直接带隙型能带结构,带隙较本征ZnS半导体增大了6.4.,达到2.19 eV.缺陷体系s态、p态电子主要在距离费米能量较近的区域产生能带,数量较少;Znd态电子主要在距离费米能量较远的区域产生能带.Zn空位缺陷对ZnS半导体材料是一种空穴型掺杂,Zn空位会增加ZnS的空穴型载流子浓度.其价带空穴具有较大有效质量,导带电子具有较小有效质量,Zn空位缺陷ZnS不显示磁性.Zn空位缺陷ZnS半导体材料2.0 nm附近介电吸收峰强度降低,170 nm附近介电吸收峰消失,100 nm波长附近出现了较弱的介电吸收峰.

关键词：材料 ZnS Zn空位缺陷磁性光学性质

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