Chin. Phys. B
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CN 11-5639/O4
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 Chin. Phys. B
 Chin. Phys. B--2007, Vol.16, No.11
GENERAL
Ren Wen-Xiu, Alatancang
Chin. Phys., 2007, 16 (11): 3154-3160 doi: 10.1088/1009-1963/16/11/002
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Using factorization viewpoint of differential operator, this paper discusses how to transform a nonlinear evolution equation to infinite-dimensional Hamiltonian linear canonical formulation. It proves a sufficient condition of canonical factorization of operator, and provides a kind of mechanical algebraic method to achieve canonical ${\partial}/{\partial x}'$-type expression, correspondingly. Then three examples are given, which show the application of the obtained algorithm. Thus a novel idea for inverse problem can be derived feasibly.
Shang Mei, Mei Feng-Xiang
Chin. Phys., 2007, 16 (11): 3161-3167 doi: 10.1088/1009-1963/16/11/003
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In this paper symmetries and conservation laws for stochastic dynamical systems are discussed in detail. Determining equations for infinitesimal approximate symmetries of Ito and Stratonovich dynamical systems are derived. It shows how to derive conserved quantities for stochastic dynamical systems by using their symmetries without recourse to Noether's theorem.
Jia Li-Qun, Zhang Yao-Yu, Luo Shao-Kai
Chin. Phys., 2007, 16 (11): 3168-3175 doi: 10.1088/1009-1963/16/11/004
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Hojman conserved quantities deduced from the special Lie symmetry, the Noether symmetry and the form invariance for a nonholonomic system of the unilateral non-Chetaev type in the event space are investigated. The differential equations of motion of the system above are established. The criteria of the Lie symmetry, the Noether symmetry and the form invariance are given and the relations between them are obtained. The Hojman conserved quantities are gained by which the Hojman theorem is extended and applied to the nonholonomic system of the unilateral non-Chetaev type in the event space. An example is given to illustrate the application of the results.
Luo Shao-Kai, Chen Xiang-Wei, Guo Yong-Xin
Chin. Phys., 2007, 16 (11): 3176-3181 doi: 10.1088/1009-1963/16/11/005
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Based on the invariance of differential equations under infinitesimal transformations of group, Lie symmetries, exact invariants, perturbation to the symmetries and adiabatic invariants in form of non-Noether for a Lagrange system are presented. Firstly, the exact invariants of generalized Hojman type led directly by Lie symmetries for a Lagrange system without perturbations are given. Then, on the basis of the concepts of Lie symmetries and higher order adiabatic invariants of a mechanical system, the perturbation of Lie symmetries for the system with the action of small disturbance is investigated, the adiabatic invariants of generalized Hojman type for the system are directly obtained, the conditions for existence of the adiabatic invariants and their forms are proved. Finally an example is presented to illustrate these results.
Luo Shao-Kai
Chin. Phys., 2007, 16 (11): 3182-3186 doi: 10.1088/1009-1963/16/11/006
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For a relativistic holonomic nonconservative system, by using the Noether symmetry, a new non-Noether conserved quantity is given under general infinitesimal transformations of groups. On the basis of the theory of invariance of differential equations of motion under general infinitesimal transformations, we construct the relativistic Noether symmetry, Lie symmetry and the condition under which the Noether symmetry is a Lie symmetry under general infinitesimal transformations. By using the Noether symmetry, a new relativistic non-Noether conserved quantity is given which only depends on the variables $t$, $q_s$ and $\dot {q}_s$. An example is given to illustrate the application of the results.
Li Hua-Mei
Chin. Phys., 2007, 16 (11): 3187-3191 doi: 10.1088/1009-1963/16/11/007
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We present several families of exact solutions to a system of coupled nonlinear Schr\"{o}dinger equations. The model describes a binary mixture of two Bose--Einstein condensates in a magnetic trap potential. Using a mapping deformation method, we find exact periodic wave and soliton solutions, including bright and dark soliton pairs.
Hu Jian-Lan
Chin. Phys., 2007, 16 (11): 3192-3196 doi: 10.1088/1009-1963/16/11/008
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In this paper, exact solutions are derived for four coupled complex nonlinear different equations by using simplified transformation method and algebraic equations.
Zhou Xiao-Yan, Mu Ai-Xia, Xue Ju-Kui
Chin. Phys., 2007, 16 (11): 3197-3203 doi: 10.1088/1009-1963/16/11/009
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The stability of Bose--Einstein condensates (BECs) loaded into a two-dimensional shallow harmonic potential well is studied. By using the variational method, the ground state properties for interacting BECs in the shallow trap are discussed. It is shown that the possible stable bound state can exist. The depth of the shallow well plays an important role in stabilizing the BECs. The stability of BECs in the shallow trap with the periodic modulating of atom interaction by using the Feshbach resonance is also discussed. The results show that the collapse and diffusion of BECs in a shallow trap can be controlled by the temporal modulation of the scattering length.
Chen Li-Bing, Lu Hong, Jin Rui-Bo
Chin. Phys., 2007, 16 (11): 3204-3211 doi: 10.1088/1009-1963/16/11/010
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We present a systematic simple method to implement a generalized quantum control-NOT (CNOT) gate on two $d$-dimensional distributed systems. First, we show how the nonlocal generalized quantum CNOT gate can be implemented with unity fidelity and unity probability by using a maximally entangled pair of qudits as a quantum channel. We also put forward a scheme for probabilistically implementing the nonlocal operation with unity fidelity by employing a partially entangled qudit pair as a quantum channel. Analysis of the scheme indicates that the use of partially entangled quantum channel for implementing the nonlocal generalized quantum CNOT gate leads to the problem of the general optimal information extraction'. We also point out that the nonlocal generalized quantum CNOT gate can be used in the entanglement swapping between particles belonging to distant users in a communication network and distributed quantum computer.
Chen Ju-Hua, Wang Yong-Jiu
Chin. Phys., 2007, 16 (11): 3212-3215 doi: 10.1088/1009-1963/16/11/011
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In this paper we investigate the gravitational frequency-shift and deflection of light in the Schwarzschild black hole space-time surrounded by quintessence. With the analytical and numerical methods, we find that the gravitational frequency-shift of light in the Schwarzschild black hole space-time surrounded by the quintessence increases as the values of the normalization factor $c$ increases, but the gravitational frequency-shift of light decreases with the quintessential state parameter $\omega_{\rm q}$ increasing. We also calculate the deflection of light by quintessence and find that the deflection rate decreases as the values of the quintessential parameters $c$ and $\omega_{\rm q}$ increase.
Wu Jun-Lin, Huang Xin-Min
Chin. Phys., 2007, 16 (11): 3216-3219 doi: 10.1088/1009-1963/16/11/012
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null
Meng Qing-Fang, Peng Yu-Hua, Sun Jia
Chin. Phys., 2007, 16 (11): 3220-3225 doi: 10.1088/1009-1963/16/11/013
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Based on the Bayesian information criterion, this paper proposes the improved local linear prediction method to predict chaotic time series. This method uses spatial correlation and temporal correlation simultaneously. Simulation results show that the improved local linear prediction method can effectively make multi-step and one-step prediction of chaotic time series and the multi-step prediction performance and one-step prediction accuracy of the improved local linear prediction method are superior to those of the traditional local linear prediction method.
Sun Zhong-Kui, Xu Wei, Yang Xiao-Li
Chin. Phys., 2007, 16 (11): 3226-3230 doi: 10.1088/1009-1963/16/11/014
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Hu Man-Feng, Xu Zhen-Yuan
Chin. Phys., 2007, 16 (11): 3231-3237 doi: 10.1088/1009-1963/16/11/015
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Wang Fan-Zhen, Chen Zeng-Qiang, Wu Wen-Juan, Yuan Zhu-Zhi
Chin. Phys., 2007, 16 (11): 3238-3243 doi: 10.1088/1009-1963/16/11/016
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Wei Du-Qu, Luo Xiao-Shu
Chin. Phys., 2007, 16 (11): 3244-3248 doi: 10.1088/1009-1963/16/11/017
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Jia Fei-Lei, Xu Wei, Du Lin
Chin. Phys., 2007, 16 (11): 3249-3255 doi: 10.1088/1009-1963/16/11/018
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Lu Wei-Guo, Zhou Luo-Wei, Luo Quan-Ming
Chin. Phys., 2007, 16 (11): 3256-3261 doi: 10.1088/1009-1963/16/11/019
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null
Sun Jian-Cheng
Chin. Phys., 2007, 16 (11): 3262-3270 doi: 10.1088/1009-1963/16/11/020
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Yan Sen-Lin
Chin. Phys., 2007, 16 (11): 3271-3278 doi: 10.1088/1009-1963/16/11/021
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A scheme of synchronized injection multi-quantum-well (MQW) laser system using optical coupling-feedback is presented for performing chaotic dual-directional secure communication. The performance characterization of chaos masking is investigated theoretically, the equation of synchronization demodulation is deduced and its root is also given. Chaos masking encoding with a rate of 5\,Gbit/s and a modulation frequency of 1\,GHz, chaos modulation with a rate of 0.2\,Gbit/s and a modulation frequency of 0.2\,GHz and chaos shifting key with a rate of 0.2\,Gbit/s are numerically simulated, separately. The ratio of the signal to the absolute synchronous error and the time for achieving synchronous demodulation are analysed in detail. The results illustrate that the system has stronger privacy and good performances so that it can be applied in chaotic dual-directional high rate secure communications.
Liu Chong-Xin
Chin. Phys., 2007, 16 (11): 3279-3284 doi: 10.1088/1009-1963/16/11/022
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In this paper a new hyperchaotic system is reported. Some basic dynamical properties, such as continuous spectrum, Lyapunov exponents, fractal dimensions, strange attractor and Poincar\'{e} mapping of the new hyperchaotic system are studied. Dynamical behaviours of the new hyperchaotic system are proved by not only numerical simulation and brief theoretical analysis but also an electronic circuit experiment.
Wang Xiang-Hui, Lin Lie, Zhang Yang
Chin. Phys., 2007, 16 (11): 3285-3289 doi: 10.1088/1009-1963/16/11/023
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null
RAPID COMMUNICATION
Pan Yi, Shi Dong-Xia, Gao Hong-Jun
Chin. Phys., 2007, 16 (11): 3151-3153 doi: 10.1088/1009-1963/16/11/001
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We report on the formation of a graphene monolayer on a Ru(0001) surface by annealing the Ru(0001) crystal. The samples are characterized by scanning tunnelling microscopy (STM) and Auger electron spectroscopy (AES). STM images show that the Moir\'{e} pattern is caused by the graphene layer mismatched with the underlying Ru(0001) surface and has an $N\times N$ superlattice. It is further found that the graphene monolayer on a Ru(0001) surface is very stable at high temperatures. Our results provide a simple and convenient method to produce a graphene monolayer on the Ru(0001) surface, which is used as a template for fabricating functional nanostructures needed in future nano devices and catalysis.
NUCLEAR PHYSICS
Liu Hong-Lin, Liu Men-Quan, Liu Jing-Jing, Luo Zhi-Quan
Chin. Phys., 2007, 16 (11): 3300-3304 doi: 10.1088/1009-1963/16/11/026
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Liu Jian-Ye, Guo Wen-Jun, Xing Yong-Zhong
Chin. Phys., 2007, 16 (11): 3305-3311 doi: 10.1088/1009-1963/16/11/027
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Li Cheng-Yue, J. P. Allain, Deng Bai-Quan
Chin. Phys., 2007, 16 (11): 3312-3318 doi: 10.1088/1009-1963/16/11/028
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CLASSICAL AREAS OF PHENOMENOLOGY
Su Fu-Fang, Zhang Xing-Yu, Wang Qing-Pu, Chang Jun, Jia Peng, Li Shu-Tao, Zhang Xiao-Lei, Cong Zhen-Hua
Chin. Phys., 2007, 16 (11): 3370-3376 doi: 10.1088/1009-1963/16/11/037
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Zhou Guo-Quan, Ni Yong-Zhou, Chu Xiu-Xiang
Chin. Phys., 2007, 16 (11): 3377-3381 doi: 10.1088/1009-1963/16/11/038
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Xie Hong, Li Hong-Cai, Yang Rong-Can, Lin Xiu, Huang Zhi-Ping
Chin. Phys., 2007, 16 (11): 3382-3385 doi: 10.1088/1009-1963/16/11/039
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Chen Ai-Xi, Deng Li, Wu Qing-Ping
Chin. Phys., 2007, 16 (11): 3386-3390 doi: 10.1088/1009-1963/16/11/040
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Yang Zhen-Biao, Wu Huai-Zhi, Su Wan-Jun, Zhong Zhi-Rong, Zheng Shi-Biao
Chin. Phys., 2007, 16 (11): 3391-3395 doi: 10.1088/1009-1963/16/11/041
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Liu Tang-Kun
Chin. Phys., 2007, 16 (11): 3396-3401 doi: 10.1088/1009-1963/16/11/042
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Zhao Feng, Fu Ming-Xing, Lu Yi-Qun, Liu Song-Hao
Chin. Phys., 2007, 16 (11): 3402-3406 doi: 10.1088/1009-1963/16/11/043
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Gan Chen-Li, Nie Zhi-Qiang, Li Ling, Shen Lei-Jian, Zhang Yan-Peng, Song Jian-Ping, Li Yuan-Yuan, Zhang Xiang-Chen, Lu Ke-Qing
Chin. Phys., 2007, 16 (11): 3407-3415 doi: 10.1088/1009-1963/16/11/044
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Mao Wei, Zhang Shu-Lian, Xu Ting, Wan Xin-Jun, Liu Gang
Chin. Phys., 2007, 16 (11): 3416-3422 doi: 10.1088/1009-1963/16/11/045
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Lu Ke-Qing, Yang Yan-Long, Zhao Wei, Zhang Mei-Zhi, Yang Yang, Zhang Lei, Liu Xue-Ming, Zhang Yan-Peng
Chin. Phys., 2007, 16 (11): 3423-3428 doi: 10.1088/1009-1963/16/11/046
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Zou Hua, Zhu Wei-Hua, Wang Guo-Dong
Chin. Phys., 2007, 16 (11): 3429-3433 doi: 10.1088/1009-1963/16/11/047
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ATOMIC AND MOLECULAR PHYSICS
Yang Ze-Jin, Cheng Xin-Lu, Yang Xiang-Dong
Chin. Phys., 2007, 16 (11): 3319-3322 doi: 10.1088/1009-1963/16/11/029
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Wang Chuan-Kui, Xing Xiao-Juan, Huang Xiao-Ming, Gao Yun
Chin. Phys., 2007, 16 (11): 3323-3327 doi: 10.1088/1009-1963/16/11/030
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Ma Hong-Liang, Yang Jun-Yi, Lu Bo, Ma Guo-Hong
Chin. Phys., 2007, 16 (11): 3328-3331 doi: 10.1088/1009-1963/16/11/031
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Liao Yu-Bo, Meng Yao-Yong, Lei Hao-Dong, Wang Ying
Chin. Phys., 2007, 16 (11): 3332-3338 doi: 10.1088/1009-1963/16/11/032
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Ma Er-Jun, Ma Yu-Gang, Cai Xiang-Zhou, Fang De-Qing, Shen Wen-Qing, Tian Wen-Dong
Chin. Phys., 2007, 16 (11): 3339-3344 doi: 10.1088/1009-1963/16/11/033
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Yu Chun-Ri, Shi Shou-Hua, Wang Rong-Kai, Yang Xiang-Dong
Chin. Phys., 2007, 16 (11): 3345-3351 doi: 10.1088/1009-1963/16/11/034
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Shen Guang-Xian, Linghu Rong-Feng, Wang Rong-Kai, Yang Xiang-Dong
Chin. Phys., 2007, 16 (11): 3352-3358 doi: 10.1088/1009-1963/16/11/035
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Liu Xia, Zhao Gao-Feng, Guo Ling-Ju, Wang Xian-Wei, Zhang Jun, Jing Qun, Luo You-Hua
Chin. Phys., 2007, 16 (11): 3359-3369 doi: 10.1088/1009-1963/16/11/036
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CROSS DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY
Xie Wen-Jie, Tang Xin-Feng, Zhang Qing-Jie
Chin. Phys., 2007, 16 (11): 3549-3552 doi: 10.1088/1009-1963/16/11/065
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THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Mi Ai-Jun, Zuo Wei, Li Ang
Chin. Phys., 2007, 16 (11): 3290-3296 doi: 10.1088/1009-1963/16/11/024
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Feng Xue-Chao, Feng Jun-Lan
Chin. Phys., 2007, 16 (11): 3297-3299 doi: 10.1088/1009-1963/16/11/025
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PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES
Ding Bo-Jiang, Sakamoto Yoshiteru, Miura Yukitoshi
Chin. Phys., 2007, 16 (11): 3434-3442 doi: 10.1088/1009-1963/16/11/048
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Zhong Fang-Chuan, Huang Tian-Sen, Petrov Yuri
Chin. Phys., 2007, 16 (11): 3443-3450 doi: 10.1088/1009-1963/16/11/049
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Chen Wei, Cui Zheng-Ying, Sun Ping, Huang Yuan, Zhang Peng, Deng Wei, Pan Yu-Dong, Shi Zhong-Bing, Zhou Yan, Zheng Yong-Zhen, Yang Qing-Wei
Chin. Phys., 2007, 16 (11): 3451-3457 doi: 10.1088/1009-1963/16/11/050
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Cheng Fa-Yin, Shi Bing-Ren
Chin. Phys., 2007, 16 (11): 3458-3463 doi: 10.1088/1009-1963/16/11/051
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Jiao Yi-Ming, Long Yong-Xing, Dong Jia-Qi, Gao Qing-Di, Wang Ai-Ke, Liu Yong
Chin. Phys., 2007, 16 (11): 3464-3469 doi: 10.1088/1009-1963/16/11/052
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CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES
Li Lian-Bi, Chen Zhi-Ming, Lin Tao, Pu Hong-Bin, Li Qing-Min, Li Jia
Chin. Phys., 2007, 16 (11): 3470-3474 doi: 10.1088/1009-1963/16/11/053
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Fu Dong, Liao Tao
Chin. Phys., 2007, 16 (11): 3475-3482 doi: 10.1088/1009-1963/16/11/054
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Gao Kun, Wang Bing-Hong, Fu Chuan-Ji, Lu Yu-Feng
Chin. Phys., 2007, 16 (11): 3483-3493 doi: 10.1088/1009-1963/16/11/055
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CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES
Cheng Zhi-Qun, Cai Yong, Liu Jie, Zhou Yu-Gang, Lau Kei May, Chen J. Kevin
Chin. Phys., 2007, 16 (11): 3494-3497 doi: 10.1088/1009-1963/16/11/056
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Zhang Jian-Ming, Zou De-Shu, Xu Chen, Guo Wei-Ling, Zhu Yan-Xu, Liang Ting, Da Xiao-Li, Li Jian-Jun, Shen Guang-Di
Chin. Phys., 2007, 16 (11): 3498-3501 doi: 10.1088/1009-1963/16/11/057
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Wang Yan-Gang, Xu Ming-Zhen, Tan Chang-Hua
Chin. Phys., 2007, 16 (11): 3502-3506 doi: 10.1088/1009-1963/16/11/058
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Wang Zhe-Xian, Ming Yi, Ding Ze-Jun
Chin. Phys., 2007, 16 (11): 3507-3513 doi: 10.1088/1009-1963/16/11/059
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Li Xiao-Wei
Chin. Phys., 2007, 16 (11): 3514-3519 doi: 10.1088/1009-1963/16/11/060
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Jin Han-Min, Chong-Oh Kim, Taek-Dong Lee, Hyo-Jin Kim
Chin. Phys., 2007, 16 (11): 3520-3535 doi: 10.1088/1009-1963/16/11/061
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He Shu-Li, Peng Yin, Liu Li-Li, Jiang Hong-Wei, Liu Li-Feng, Zheng Wu, Wang Ai-Ling
Chin. Phys., 2007, 16 (11): 3536-3540 doi: 10.1088/1009-1963/16/11/062