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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,{2., China institute of theoretical {2. 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 GM4D = SO(1,3)×SU(32.×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

Advancing space-based gravitational wave astronomy: Rapid parameter estimation via normalizing flows

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Science China(physics,Mechanics & Astronomy) 2024年第3期67卷 20-33页

作者： Minghui Du Bo Liang He Wang Peng Xu Ziren Luo yueliang wu Center for Gravitational Wave Experiment National Microgravity LaboratoryInstitute of MechanicsChinese Academy of SciencesBeijing 100190China Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China Shanghai institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghai 201800China International Centre for theoretical physics Asia-Pacific University of Chinese Academy of SciencesBeijing 100049China Taiji Laboratory for Gravitational Wave Universe(beijing/Hangzhou) University of Chinese Academy of SciencesBeijing 100049China Lanzhou Center of theoretical physics Lanzhou UniversityLanzhou 730000China Hangzhou institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China institute of theoretical {2. Chinese Academy of SciencesBeijing 100190China

Gravitational wave(GW) astronomy is witnessing a transformative shift from terrestrial to space-based detection, with missions like Taiji at the forefront. While the transition brings unprecedented opportunities for exploring massive black hole binaries(MBHBs), it also imposes complex challenges in data analysis, particularly in parameter estimation amidst confusion *** this gap, we utilize scalable normalizing flow models to achieve rapid and accurate inference within the Taiji environment. Innovatively, our approach simplifies the data's complexity, employs a transformation mapping to overcome the year-period time-dependent response function, and unveils additional multimodality in the arrival time parameter. Our method estimates MBHBs several orders of magnitude faster than conventional techniques, maintaining high accuracy even in complex backgrounds. These findings significantly enhance the efficiency of GW data analysis, paving the way for rapid detection and alerting systems and enriching our ability to explore the universe through space-based GW observation.

关键词： Taiji program gravitational wave detection parameter estimation machine learning

Progress of Taiji-2.Project

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空间科学学报 2024年第4期44卷 674-676页

作者： LUO Ziren ZHANG Min WANG Jianyu wu yueliang Taiji Laboratory for Gravitational Universe University of Chinese Academy of SciencesBeijing 100049 Hangzhou institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024 institute of Mechanics Chinese Academy of SciencesBeijing 100190 International Center for theoretical physics Asia-Pacific University of Chinese Academy of SciencesBeijing 100190 Shanghai institute of Technical physics Chinese Academy of SciencesShanghai 200083

Taiji-2.project is the second step of Taiji program,which is to verify the required technology for Taiji-3 *** feasibility study of Taiji-2.is successfully finished,and some of the main progress is introduced here.

关键词： Gravitational wave Taiji program Taiji-2.project

Difference discrete connection and curvature on cubic lattice

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Science China Mathematics 2006年第11期49卷 1458-1476页

作者： wu Ke, ZHAO Weizhong & GUO Hanying Department of Mathematics, Capital Normal University, beijing 100037, China {2. of {2. physics, chinese academy of sciences, beijing 100080, China Department of Mathematics Capital Normal University Beijing China institute of theoretical {2. Chinese Academy of Sciences Beijing China

In a way similar to the continuous case formally, we define in different but equivalent manners the difference discrete connection and curvature on discrete vector bundle over the regular lattice as base space. We deal with the difference operators as the discrete counterparts of the derivatives based upon the differential calculus on the lattice. One of the definitions can be extended to the case over the random lattice. We also discuss the relation between our approach and the lattice gauge theory and apply to the discrete integrable systems.

关键词： discrete connection, discrete curvature, noncommutative calculus, lattice gauge theory, discrete Lax pair.

Two Higgs bi-doublet left-right model with spontaneous P and CP violation

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Science China(physics,Mechanics & Astronomy) 2008年第12期51卷 1808-1825页

作者： wu yueliang 1↑ & ZHOU YuFeng2.1 Kavli {2. for {2. physics China, {2. of {2. physics, chinese academy of Sci- ences, beijing 100190, China 2.KEK, Tsukuba, 305-0801, Japan Kavli institute for theoretical {2. China Institute of Theoretical Physics Chinese Academy of Sciences Beijing China KEK Tsukuba Japan

A left-right symmetric model with two Higgs bi-doublet is shown to be a consistent model for both spontaneous P and CP violation. The flavor changing neutral cur- rents can be suppressed by the mechanism of approximate global U(1) family symmetry. The constraints from neural K meson mass difference ΔmK are calcu- lated and it is demonstrated that a right-handed gauge boson W2.contribution in box-diagrams with mass well below 1 TeV is allowed due to a cancelation caused by a light-charged Higgs boson with a mass range of 150-300 GeV. The W2.con- tribution to εK can be suppressed from an appropriate choice of additional CP phases appearing in the right-handed Cabbibo-Kobayashi-Maskawa matrix. The model is also found to be fully consistent with B0 mass difference ΔmB and the mixing induced CP violation sin2.J/ψ , which is usually difficult for the model with only one Higgs bi-doublet. The new physics beyond the standard model can be directly searched at the colliders LHC and ILC.

关键词： left-right symmetry spontaneous P and CP violation two Higgs bi-doublets new physics

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 {2. {2., chinese academy of sciences, beijing 100190, China 2.1} of High Energy {2., chinese academy of sciences, beijing 100049, China 3{2. {2. Center for Science Facilities, chinese academy of sciences, beijing 100049, China 4Department of Mathematics, Capital Normal University, beijing 100048, China 5Department of {2., beijing Normal University, beijing 100875, China institute of theoretical {2. Chinese Academy of Sciences Beijing China institute of High Energy physics Chinese Academy of Sciences Beijing China theoretical physics Center for Science Facilities Chinese Academy of Sciences Beijing China Department of Mathematics Capital Normal University Beijing China Department of physics Beijing Normal University Beijing China

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

Brownian ratchets driven by flashing noise strength

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chinese Science Bulletin 1999年第21期44卷 1956-1961页

作者： ZHAO Tongjun, ZHAN Yong, ZHUO Yizhong and wu XizhenDepartment of Applied Mathematics and physics , Hebei University of Technology , Tianjin 300130, China China {2. of Atomic Energy, {2. 102.13, China {2. of theoretical physics, chinese academy of sciences , beijing 100080, China Corresponding author Dept. of Appl. Math. and physics Hebei University of Technology Tianjin 300130 China China institute of Atomic Energy Beijing 102413 China institute of theoretical {2. Chinese Academy of Sciences Beijing 100080 China

The stochastic transport driven by flashing multi-noise sources in a ratchet is studied. The stationary current versus the noise strength and the colored noise correlated time T is obtained . At a fixed flip rate and strength of the colored noises, the novel phenomenon of the current reversal occurs as T reaches a certain value. More than one reversal point exists when

关键词： flashing force ratchet current reversal Langevian equation.

Interface delamination of the thermal barrier coating subjected to local heating

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Science China(Technological sciences) 2010年第12期53卷 3168-3174页

作者： wu Chenwu, HUANG ChenGuang & CHEN GuangNan {2. of Mechanics, chinese academy of sciences, {2. 100190, China institute of Mechanics Chinese Academy of Sciences Beijing China

To investigate the possible failure modes of the thermal barrier coating (TBC) used to protect the scramjet combustion chamber, the local heating via laser beam irradiation was utilized to simulate the service condition of high thermal flux and high temperature gradient. Firstly, the experimental method and process were described and the typical fracture morphology of the TBC under test were provided. Then, the theoretical and finite element modeling were carried out to study the temperature, deformation and stresses of the specimen when the top ceramic coat was subjected to local heating, and to demonstrate the mechanism on the failure of the TBC. It is revealed that the interface delamination shall appear and ultimately lead to the failure of the TBC under such thermal loading of local quick heating. According to the outcome of this study, the driving force of the interface delamination is influenced greatly by the key structural parameters and performance matching. Moreover, by utilizing the rules of the effects of these parameters on the fracture driving force, there is some possibility for the designer to optimize the performances of the TBC.

关键词： TBC local heating interface delamination FE modeling

Charmed Baryon in Diquark Model

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原子核物理评论 2009年第S1期26卷 190-193页

作者： WANG Qing-wu1,3, ZHANG Peng-ming1,2.1 institute of Modern {2.,{2., Lanzhou 730000, China 2.Center of theoretical Nuclear {2., National Laboratory of Heavy Ion Research Facility in Lanzhou,Lanzhou 730000, China 3 Graduate School of{2., beijing 100049, China) institute of Modern physics Chinese Academy of SciencesLanzhou 730000China Graduate School of chinese academy of sciences Beijing 100049China institute of Modern physics Chinese Academy of SciencesLanzhou 730000China Center of theoretical Nuclear physics National Laboratory of Heavy Ion Research Facility in LanzhouLanzhou 730000China

A diquark model is used to investigate single-charmed baryons. In this model,baryon is composed of two diquarks and an antiquark. Masses of lowest lying states with JP=1/2. are obtained. Baryons in our results are as heavy as other theoretic predictions and we suggest that the five-quark components should be considered in any three-quark model for studying the charmed baryons.

关键词： charm diquark pentaquark

Synthetic aperture radar tomography sampling criteria and three-dimensional range migration algorithm with elevation digital spotlighting

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Science in China(Series F) 2009年第1期52卷 100-114页

作者： TAN WeiXian1,2.3?, HONG Wen1,2. WANG YanPing1,2. LIN Yun1,2.3 & wu YiRong1,2.1 State Key Laboratory of Microwave Imaging Technology, beijing 100190, China 2.{2. of Electronics,{2., beijing 100190, China 3 Graduate School,{2., beijing 100190, China State Key Laboratory of Microwave Imaging Technology Beijing China institute of Electronics Chinese Academy of Sciences Beijing China Graduate School Chinese Academy of Sciences Beijing China

Based on the general geometric model of multi-baseline Synthetic Aperture Radar Tomography （TomoSAR）, the three-dimensional （3-D） sampling criteria, the analytic expression of the 3-D Point Spread Function （PSF） and the 3-D resolution are derived in the 3-D wavenumber domain in this paper. Considering the relationship between the observation geometry and the size of illuminated scenario, a 3-D Range Migration Algorithm with Elevation Digital Spotlighting （RMA-EDS） is proposed. With this algorithm 3-D images of the area of interest can be directly and accurately reconstructed in the 3-D space avoiding the complex operations of 3-D geometric correction. Finally, theoretical analyses and simulation results are presented to demonstrate the shift-varying property of the 3-D PSF and the spatialvarying property of the 3-D resolution and to demonstrate the validity of the 3-D RMA-EDS.

关键词： synthetic aperture radar tomography (TomoSAR) three-dimensional (3-D) SAR imaging 3-D sampling criteria 3-D resolution,3-D range migration algorithm with elevation digital spotlighting (RMA-EDS)