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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, beijing 100080,{2. 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

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

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,{2. {2. of theoretical physics, Chinese Academy of Sciences, beijing 100080,{2. 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.

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,{2. {2. institute of Atomic Energy, beijing 102.13,{2. institute of theoretical physics, Chinese Academy of Sciences , beijing 100080,{2. 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.

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

Mechanisms of the pancake vortex and vortex line movement in the high T_c superconductors Bi_2.r_2.aCu_2._8+δ and La_(1.93)Sr0.0_7CuO_4+δ

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Science china(physics,Mechanics & Astronomy) 2007年第2期50卷 240-248页

作者： WANG WeiXian1,ZHOU Fang2.TAN Shun1,wu Huan1 & ZHANG YuHeng1 1 National High Magnetic Field Laboratory,University of Science and Technology of china,Hefei 2.002.,{2. 2.National Laboratory for Superconductivity,lnstitute of {2. and the Center for Condensed Matter {2.,Chinese Academy of Sciences,beijing 100080,{2. National High Magnetic Field Laboratory University of Science and Technology of China Hefei China National Laboratory for Superconductivity Institute of Physics and the Center for Condensed Matter Physics Chinese Academy of Sciences Beijing China

In the strict sense, it is not very clear why with magnetic field increasing, the normal-superconductive (NS) transition becomes broad for Bi2.r2.aCu2.8+δ(Bi2.12. while the NS transitions are almost parallel for La193Sroo7Cu04+δ(La2.4). In this paper, R-T relations are measured by the six-probe method. We propose a moving mechanism of the pancake vortex and vortex line for Bi2.12. The theoretical curves fit the experiment data well.

关键词： superconductivity superconductive pancake vortex dynamics

Virtualities of quark and gluon in QCD vacuum

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Science china(physics,Mechanics & Astronomy) 2008年第10期51卷 1439-1447页

作者： ZHOU LiJuan1, QIN SongMei2. wu Qing3 & MA WeiXing4 1 Collaboration Group of Hadron physics and Non-perturbative QCD Study, Guangxi University of Tech- nology, Liuzhou 545006,{2. 2.Department of physics, Guangxi University, Nanning 540003,{2. 3 Department of physics, Qingdao University, Qingdao 2.6071,{2. 4 institute of High Energy physics, Chinese Academy of Sciences, beijing 100049,{2. Collaboration Group of Hadron physics and Non-perturbative QCD Study Guangxi University of Technology Liuzhou China Department of physics Guangxi University Nanning China Department of physics Qingdao University Qingdao China institute of High Energy physics Chinese Academy of Sciences Beijing China

The non-local vacuum condensates of quantum chromodynamics (QCD) describe the distributions of quarks and gluons in the non-perturbative QCD vacuum state. Physically, this means that vacuum quarks and gluons have a nonzero mean-squared momentum in the vacuum, called virtuality. The quark virtuality is given by the ratio of the local quark-gluon mixed vacuum condensate to the quark local vacuum condensate. The gluon virtuality is expressed by gluon vacuum condensates and four-quark vacuum condensates. We study the two virtualities by solving Dyson-Schwinger Equations and calculating quark and gluon vacuum condensates. Our theoretical results for quark virtuality are in good agreement with many other theoretical model predictions such as QCD sum rules and lattice QCD calculations. Our calculation on gluon virtuality is initial and the results are quite interesting.

关键词： quark gluon virtuality QCD vacuum condensate non-perturbative QCD

Self-Organizing Approach for Finding Borders of DNA Coding Regions

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Self-Organizing Approach for Finding Borders of DNA Coding R...