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Testing local realism in P → VV decays

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science China(physics,Mechanics & Astronomy) 2010年第5期53卷 870-875页

作者： LI JunLi1 & QIAO CongFeng1,2 1Department of physics,Graduate University of chinese academy of sciences,beijing 10004.,China 2{3. physics center for science facilities(TPCSF),chinese academy of sciences,beijing 10004.,China Graduate University of chinese academy of sciences Department of Physics Beijing China (GRID:grid.458514.9) Graduate University of chinese academy of sciences Department of Physics Beijing China (GRID:grid.458514.9) chinese academy of sciences Theoretical Physics Center for Science Facilities (TPCSF) Beijing China (GRID:grid.9227.e) (ISNI:***)

It was found that the vector meson pair from the pseudoscalar decays can form an entangled *** this work we give out detailed explanations on the polarization correlation of the two entangled vector *** is demonstrated that an experimental test of the Clauser-Horne inequality can be carried out through measuring the azimuthal distribution of four pseudoscalars in the cascade decay ηc→ VV →(PP)(PP),and the measurement of this process is feasible with the current running experiments in tau-charm ***,a brief discussion on the polarization correlation of the two vector mesons from B → VV decays is also presented.

关键词： nonlocality test high energy experiment meson decays

The principle of relativity, kinematics and algebraic relations

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science China(physics,Mechanics & Astronomy) 2010年第4期53卷 591-597页

作者： GUO HanYing1, HUANG ChaoGuang2,3. WU HongTu4.& ZHOU Bin5 1Institute of theoretical physics, chinese academy of sciences, {3. 100190, China 2Institute of High Energy physics, chinese academy of sciences, {3. 10004., China 3.0} physics center for science facilities, chinese academy of sciences, {3. 10004., China 4.epartment of Mathematics, Capital Normal University, {3. 10004., China 5Department of physics, {3. Normal University, {3. 100875, China chinese academy of sciences Institute of Theoretical Physics Beijing China (GRID:grid.9227.e) (ISNI:***) chinese academy of sciences Institute of High Energy Physics Beijing China (GRID:grid.9227.e) (ISNI:***) chinese academy of sciences Theoretical Physics Center for Science Facilities Beijing China (GRID:grid.9227.e) (ISNI:***) Capital Normal University Department of Mathematics Beijing China (GRID:grid.253663.7) (ISNI:***) beijing Normal University Department of Physics Beijing China (GRID:grid.20513.35) (ISNI:***)

Based on the relativistic principle and the postulate of universal invariant constants (c, l), all kinematic symmetries can be set up as the subsets of the Umov-Weyl-Fock-Hua transformations for the inertial motions. ... 详细信息

关键词： principle of relativity with (c l) Umov-Weyl-Fock-Hua transformations kinematics special relativity triple

BRST quantization and canonical Ward identity of the supersymmetric electromagnetic interaction system

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science China(physics,Mechanics & Astronomy) 2007年第3期50卷 339-347页

作者： HUANG YongChang1,3.4. JIANG YunGuo1 & LI XinGuo2,3.1 Institute of theoretical physics, College of Applied {4., {3. University of Technology, {3. 100022, China 2 Institute of Modern physics, chinese academy of sciences, Lanzhou 73.000, China 3.center of theoretical Nuclear physics, National Laboratory of Heavy Ion Collisions, chinese academy of sciences, Lanzhou 73.000, China 4.China center of Advanced science and Technology (World Laboratory), {3. 100080, China Institute of theoretical physics College of Applied Sciences Beijing University of Technology Beijing China center of theoretical Nuclear physics National Laboratory of Heavy Ion Collisions Chinese Academy of Sciences Lanzhou China China center of Advanced science and Technology (World Laboratory) Beijing China Institute of Modern physics Chinese Academy of Sciences Lanzhou China

According to the method of path integral quantization for the canonical constrained system in Becchi-Rouet-Stora-Tyutin scheme, the supersymmetric electromagnetic interaction system was quantized. Both the Hamiltonian of the supersymmetric electromagnetic interaction system in phase space and the quantization procedure were simplified. The BRST generator was constructed, and the BRST transforma- tions of supersymmetric fields were gotten; the effective action was calculated, and the generating functional for the Green function was achieved; also, the gauge generator was constructed, and the gauge transformation of the system was ob- tained. Finally, the Ward-Takahashi identities based on the canonical Noether theorem were calculated, and two relations between proper vertices and propaga- tors were obtained.

关键词： supersymmetric electromagnetic interaction BRST quantization Ward identity

Patterns of platinum-group elements in mantle peridotite, granulite xenoliths and basalt in Hannuoba

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chinese science Bulletin 1999年第18期44卷 1676-1681页

作者： CHU Xuelei, LI Xiaolin, XU Jiuhua and LIU Jianming1. The Research center of Mineral Resources Exploration , chinese academy of sciences , beijing 100101, China 2. Institute of Geology , chinese academy of sciences , beijing 100029, China 3. Institute of High Energy physics , chinese academy of sciences , beijing 100817 , China 4. beijing University of science and Engineering , beijing 100083. China Corresponding author The Research center of Mineral Resources Exploration Chinese Academy of Sciences Beijing China Institute of Geology Chinese Academy of Sciences Beijing China Institute of High Energy physics Chinese Academy of Sciences Beijing China beijing University of science and Engineering Beijing China

Neutron activation analysis after preconcentration of nickel sulfide fire assay was used in measurement of Ru, Ph, Pd, Os, Ir, Pt (i.e. PGE elements) and Au concentrations for basalt, mantle and granulite xenoliths in Hannuoba. The chondrite- and primitive mantle-normalized PGE patterns generally exhibit flat (for Iherzolite), negative slope (for harzburgite),

关键词： mantle xenolith granulite xenolith basalt platinum-group element Hannuoba.

Comparison of dark energy models:A perspective from the latest observational data

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中国科学：物理学、力学、天文学英文版 2010年第9期53卷 1631-1645页

作者： LI Miao1,2,LI XiaoDong2,3.& ZHANG Xin1,4.1Kavli Institute for theoretical physics China,chinese academy of sciences,{3. 100190,China 2Key Laboratory of Frontiers in theoretical physics,Institute of theoretical physics,chinese academy of sciences,{3. 100190,China 3.nterdisciplinary center for theoretical Study,University of {14. and Technology of China,Hefei 23.026,China 4.epartment of physics,College of sciences,Northeastern University,Shenyang 110004.China Kavli Institute for theoretical physics China Chinese Academy of Sciences Key Laboratory of Frontiers in theoretical physics Institute of Theoretical Physics Chinese Academy of Sciences Interdisciplinary center for theoretical Study University of Sc

We compare some popular dark energy models under the assumption of a flat universe by using the latest observational data including the type Ia supernovae Constitution compilation,the baryon acoustic oscillation measurement from the Sloan Digital Sky Survey,the cosmic microwave background measurement given by the seven-year Wilkinson Microwave Anisotropy Probe observations and the determination of H0 from the Hubble Space *** comparison statistics such as the Bayesian and Akaike information criteria are applied to assess the worth of the *** statistics favor models that give a good fit with fewer *** on this analysis,we find that the simplest cosmological constant model that has only one free parameter is still preferred by the current *** other dynamical dark energy models,we find that some of them,such as the αdark energy,constant w,generalized Chaplygin gas,Chevalliear-Polarski-Linder parametrization,and holographic dark energy models,can provide good fits to the current data,and three of them,namely,the Ricci dark energy,agegraphic dark energy,and Dvali-Gabadadze-Porrati models,are clearly disfavored by the data.

关键词： dark energy models observational constraints model comparison information criteria

Compression behavior of Zr_(4.)Ti_(14.Cu_(12.5)Ni_(10)Be_(22.5) bulk metallic glass up to 24.GPa

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science China(physics,Mechanics & Astronomy) 2005年第3期48卷 319-324页

作者： LI Gong 1, 2 , ZHAN Zaiji 2 , LIU Jing 3., YUN Jinku 1 , SUN Liling 2 , LIU Riping 1 , ZHANG Jun 2 & WANG Wenkui 1, 2 1. Key Laboratory of Metastable Materials science and Technology, Yanshan University, Qinhuangdao 066004. China 2. center for Condensed Matter physics, Institute of physics, {4., beijing 100080, China 3. BSRF, Institute of High Energy physics, {4., beijing 10003., China Key Laboratory of Metastable Materials science and Technology Yanshan University Qinhuangdao China center for Condensed Matter physics Institute of Physics Chinese Academy of Sciences Beijing China BSRF Institute of High Energy Physics Chinese Academy of Sciences Beijing China

The compression of a Zr4.Ti14.u12.5Ni10Be22.5 bulk metallic glass (BMG) is investigated at room temperature up to 24.GPa using in-situ high pressure energy dispersive X-ray diffraction with a synchrotron radiation source. The pressure-induced structural relaxation is exhibited. It is found that below about 8 GPa, the existence of excess free volume contributes to the rapid structural relaxation, which gives rise to the rapid volumetric change, and the structural relaxation results in the structural stiffness under higher pressure.

关键词： bulk metallic glass, high pressure, structural relaxation, synchrotron radiation.

Stability of proton and maximally symmetric minimal unification model for basic forces and building blocks of matter

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science China(physics,Mechanics & Astronomy) 2007年第3期50卷 303-310页

作者： WU YueLiang Institute of theoretical physics, chinese academy of sciences, {3. 100080, China Institute of theoretical physics Chinese Academy of Sciences Beijing China

With the hypothesis that all independent degrees of freedom of basic building blocks should be treated equally on the same footing and correlated by a possible maximal symmetry, we arrive at a 4.dimensional space-time unification model. In this model the basic building blocks are Majorana fermions in the spinor repre- sentation of 14.dimensional quantum space-time with a gauge symmetry GM4. = SO(1,3.×SU(3.)×U(1)A×SU(3.F. The model leads to new physics including mirror particles of the standard model. It enables us to issue some fundamental questions that include: why our living space-time is 4.dimensional, why parity is not con- served in our world, how the stability of proton is, what the origin of CP violation is and what the dark matter can be.

关键词： gauge symmetry space-time symmetries beyond standard model and unification

Interannual variability of Antarctic Oscillation and its influence on East Asian climate during boreal winter and spring

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science China Earth sciences 2006年第5期49卷 554-560页

作者： FAN Ke1,2,3.& WANG Huijun2 1. Nansen-Zhu International Research center, Institute of Atmospheric physics, chinese academy of sciences, {3. 100029, China 2. Department of Atmospheric {4., Yunnan University, Kunming 650091, China 3. Graduate University of the chinese academy of sciences, {3. 10004., China Nansen-Zhu International Research center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Department of Atmospheric science Yunnan University Kunming China Graduate University of the chinese academy of sciences Beijing China

The interannual variability of Antarctic Oscillation (AAO) and its influence on East Asian climate during both boreal winter and spring are addressed. The results show that the positive AAO anomaly decreases the cold activity over East Asia during both boreal winter and spring. AAO-related barotropic meridional teleconnection from Antarctic to Arctic is found through analysis of mean me- ridional circulations. This meridional teleconnection is remarkable over Eurasia during boreal winter and over the Pacific Ocean during boreal spring. The results also show that zonal mean zonal wind at high latitudes in Southern Hemisphere has well positive correlation with that of Eurasia during boreal winter and has negative correlation with Pacific North American teleconnection (PNA) during boreal spring, which again display the meridional teleconnection. Thus, local meridional teleconnection is a possible linkage for interaction of circulations at mid-high latitudes between both hemispheres.

关键词： Antarctic Oscillation, Eurasian west wind, meridional teleconnection, mean meridional circulation.

Response synchronization: New progress in brain-visual information processing

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chinese science Bulletin 1999年第16期44卷 1447-1458页

作者： ZHAO Songnian, XIONG Xiaoyun, YAO Guozheng and GUO Aike1. State Key Laboratory of Atmospheric Boundary Layer physics and Atmospheric Chemistry , Institute of Atmospheric physics , chinese academy of sciences , {3. 100029, China 2. Commission of the National Natural {4. Foundation of China , {3. 100083. China 3. The center of Information {4. , Peking University, {3. 100871, China 4. Open Laboratory of Visual Information Processing , Institute of Biophysics , chinese academy of sciences , {3. 100101, China State Key Laboratory of Atmospheric Boundary Layer physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Commission of the National Natural science Foundation of China Beijing China The center of Information science Peking University Beijing China Open Laboratory of Visual Information Processing Institute of Biophysics Chinese Academy of Sciences Beijing China

Studies on brain-vision have entered a new stage, after the stimulus-induced y synchronized oscillation of neuron group activities have been discovered in cat primary visual cortex. Naturally, how to understand the visual system became a very important methodological problem. From aspects such as information processing, nonlinear dynamics and neuronal network, some primary problems in vision studies have been deeply discussed, which are

关键词： neuron group (neural population) synchro-oscillation computational theory of vision response synchroniza-tion.