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A Note on Normal Forms of Quantum States and Separability

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Communications in Theoretical Physics 2008年第12期50卷 1307-1311页

作者： LI Ming FEI Shao-Ming wang zhi-xi Department of Mathematics Capital Normal University Beijing 100037 China Institut fiir Angewandte Mathematik Universitat Bonn D-53115 Germany

We study the normal form of multipartite density *** is shown that the correlation matrix(CM)separability criterion can be improved from the normal form we obtained under filtering *** on CMcriterion the entanglement ... 详细信息

关键词： separable state entanglement witness

Local Unitary Equivalent Consistence for n-Party States and Their(n-1)-Party Reduced Density Matrices

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Chinese Physics Letters 2011年第8期28卷 28-30页

作者： wang Zhen wang He-Ping wang zhi-xi FEI Shao-Ming Department of Mathematics Jining UniversityQufu 273155 School of Mathematical Sciences Capital Normal UniversityBeijing 100048

We present that the local unitary equivalence of n-party pure states is consistent with that of their(n-l)-party reduced density *** an application,we obtain the local invariants for a class of tripartite pure qudits.

关键词： matrices pure

Classification of Bipartite and Tripartite Qutrit Entanglement Under SLOCC

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Communications in Theoretical Physics 2008年第9期50卷 651-654页

作者： YANG xin-Gang wang zhi-xi wang xiao-Hong FEI Shao-Ming College of Mathematical Sciences Capital Normal University Beijing 100037 China Max-Planck-Institute for Mathematics in the Sciences 04103 Leipzig Germany

We classify biqutrit and triqutrit pure states under stochastic local operations and classical communication. By investigating the right singular vector spaces of the coefticient matrices of the states, we obtain expl... 详细信息

关键词： biqutrit triqutrit stochastic local operations and classical communication

Matrix Tensor Product Approach to the Equivalence of Multipartite States under Local Unitary Transformations

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Communications in Theoretical Physics 2006年第2期45卷 267-270页

作者： GAO xiu-Hong S. Alberverio FEI Shao-Ming wang zhi-xi Department of Mathematics Capital Normal University Beijing 100037 China Institut fur Angewandte Mathematik Universitat Bonn D-53115 Bonn Germany

The equivalence of multipartite quantum mixed states under local unitary transformations is studied. A criterion for the equivalence of non-degenerate mixed multipartite quantum states under local unitary transformati... 详细信息

关键词： local unitary transformation multipartite quantum mixed state tensor decomposable

Identification of thermal effects involved in DSC experiment on Al-Cu-Mg-Ag alloys with high Cu:Mg ratio

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International Journal of Minerals,Metallurgy and Materials 2011年第6期18卷 671-675页

作者： Jian-bo Zhang Yong-an Zhang Bao-hong Zhu Feng wang zhi-hui Li xi-wu Li Bai-qing xiong State Key Laboratory of Nonferrous Metals and Processes General Research Institute for Non-ferrous Metals Beijing 100088 China

Precipitation reactions in the differential scanning calorimetry （DSC） of an Al-Cu-Mg-Ag alloy were identified by analyzing the results from hardness test,electrical conductivity test,and transmission electron microscope （TEM） *** is discovered that thermal effects can be identified through selected area electron diffraction and bright-field *** reaction peaks around 171,231,and 276℃ can be attributed to a structural rearrangement of coherent zones,to the precipitation of Ω phases,and to the precipitation of Ω and θ＇ and possible combination with the transition of θ＇→θ,*** addition,the hardness and electrical conductivity of the alloy change proportionately with the progression of reactions during the heating *** phenomenon can be attributed to the evolution of the micro-structure.

关键词： aluminum alloys thermal effects identification differential scanning calorimetry microstructure

Quantum Adjoint Action for Quantum Algebra Uq（f（K,H））

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Journal of Mathematical Research and Exposition 2009年第1期29卷 1-8页

作者： HOU Bo wang zhi xi College of Mathematics and Information Science Hebei Teacher's University Hebei 050016 China Department of Mathematics Capital Normal University Beijing 100037 China

The aim of this paper is to study the adjoint action for the quantum algebra Uq（f（K, H））, which is a natural generalization of quantum algebra Uq（sl2） and is regarded as a class of generalized Weyl algebra..The ... 详细信息

关键词： Adjoint action Locally finite subalgebra Highest weight vector

SOME EXPERIMENTAL STUDIES OF BOUNDARY LAYER CHARACTERISTICS ON THE OVERFLOW DAM BY LDA

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Journal of Hydrodynamics 1990年第1期2卷 29-36页

作者： wang zhi-xin Chen xi-zhen Mao Zhong-fu Department of Mechanics,Zhejiang University,Hangzhou 310027,P.R.China

The velocity profiles at six different cross sections and the development of the boundary layer over the surface of the overflow dam are *** on the experimental data using laser fcchnique the boundary layer thickness expression is *** velocity distributions within the boundary layer nearby the bottom of the dam are ana- *** fluctuating pressure on the overflow dam is compared with the fluctuating velocity nearby the bottom of the dam.

关键词： SOME EXPERIMENTAL STUDIES OF BOUNDARY LAYER CHARACTERISTICS ON THE OVERFLOW DAM BY LDA