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Synthesis of some three-qubit gates and their implementation in a three spins system coupled with Ising interaction

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Science china(Physics,Mechanics & Astronomy) 2010年第4期53卷 664-671页

作者： WEI HaiRui, DI YaoMin & WANG Yan School of Physics & Electronic Engineering, xuzhou normal university, xuzhou 221116, china xuzhou normal university School of Physics &amp Electronic Engineering Xuzhou China (GRID:grid.411857.e) (ISNI:***)

The synthesis of the Toffoli gate, Fredkin gate, three-qubit Inversion-on-equality gate and D(α) gate, as well as their implementation in a three spins system coupled with Ising interaction are investigated. The sequences of the control pulse and the drift process to implement these gates are given. It is revealed that the implementation of some three-qubit gates in a circular spin chain is much better than in a linear spin chain, and every two measurements of the quantum computation complexity are not always consistent. It is significant to directly study the implementation of the multi-qubit gates and even more complicated components of quantum information processing without resorting to their synthesis.

关键词： three-qubit gate three spins system Ising interaction the sequences of control pulses and drift processes

Synthesis and Crystal Structure of cis-Bis(3.hydroxy2-ethyl-4-pyranonato)dioxomolybdenum(Ⅵ)

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Chinese Journal of Structural Chemistry 2003年第5期22卷 573-576页

作者： LU Zai-Sheng② NIU De-Zhong LI Xiu-Ling (Department of university, xuzhou normal university, xuzhou 2.1009, china) Department of university Xuzhou Normal University

The complex MoO2(C7H7O3.2 has been prepared by the reaction of 3.hydroxy- 2-ethyl-4-pyranone with (NH4)6Mo7O244H2O. The single-crystal X-ray study shows that the coordination sphere about the molybdenum atom in the complex consists of six oxygen atoms arranged in a distorted octahedral geometry with the dioxo ligands in cis positions. The crystal is of monoclinic, space group P21/c with a = 8.3.68(2), b = 12.753.(4), c = 14.5443.4) ? b = 96.277(1), V = 1548.18(7) ?, Z = 4, C14H14O8Mo, Mr = 406.19, Dc = 1.743./cm3. m = 0.886mm-1, F(000) = 816, R = 0.0444 and wR = 0.1091 for 23.6 observed reflections with I>2s(I). The average Mo=O bond length is 1.695(4) ? The two ketonic oxygen atoms of the pyranone moieties are trans to the oxo ligands and the hydroxy oxygen atoms are trans to each other. The average MoO bond lengths are 2.248(4) ?for the ketone oxygens and 2.005(3. ?for the hydroxy oxygens. The average ligand bite angle of OMoO is 75.2(2) and the bond angle between two Mo=O is 105.1(2). The dihedral angle is 79.16(2)?between two chelate ring planes.

关键词： crystal structure molybdenum(VI) complex 3.hydroxy-2-ethyl-4-pyranone

A contribution to the study of the modified Marschalk reaction:Hydroxymethylation of 6,8-O-dimethyl emodin

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Chinese Chemical Letters 2010年第5期21卷 568-571页

作者： Hai Shan Jin,Li Ming Zhao School of Chemistry and Chemical Engineering,xuzhou normal university,xuzhou 221116,china School of Chemistry and Chemical Engineering Xuzhou Normal University Xuzhou 221116 China

Hydroxymethylation of 6,8-O-dimethyl emodin was easily achieved in good yields by the modified Marschalk *** influence of the amount of solvent,base and formaldehyde toward the hydroxymethylation was *** results showed that a relatively dilute reaction solution facilitated the generation of the desired 2-hydromethyl product,while the thick reaction solution benefited the generation of the methylated quinizarins.

关键词： Marschalk reaction Hydroxymethylation Emodin Antitumor activity

Study on Green Residential Space Design

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IJLAI Transactions on Science and Engineering

IJLAI Transactions on Science and Engineering 2024年第1期2卷 32-37页

作者： Yu Jiang Shenyang normal university No.253.Huanghe North Street Shenyang 110034China

With the ever-changing nature,green ecology has become an international trend of ***,the green ecological design of residential space has become the main melody of people’s *** always implement the concept of ecological and environmental protection in the design process,attach importance to the ecological effect of residential space,carry out reasonable budget and use of environmentally friendly decorative materials,reduce the waste of materials,save money and save resources at the same time,and protect the *** the same time,people began to put their hopes on the residential space design,which made the green residential space design began to *** the bold exploration and practice of designers,the design of green residential space will be endowed with more distinctive characteristics and unique *** from the concept of green design,this paper explores the method of green space design through typical analysis.

关键词： Green Residential space Haze

Restoration method of characters on Jiagu rubbings based on Poisson distribution and fractal geometry

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Science china(Information Sciences) 2010年第7期53卷 1296-1304页

作者： GU ShaoTong1,2,3. FENG GeFei1,2,3. MA XiaoHu1,2,4 & YANG YiMing1,2,3.1Institute of Linguistics, xuzhou normal university,{3., china 2Jiangsu College Key Lab of Linguistic Sciences and Neuro-cognition Engineering, xuzhou normal university,{3., china 3.inguistic Science College, xuzhou normal university,{3., china 4School of Computer Science and Technology, Soochow university, Suzhou 215006, china Institute of Linguistics Xuzhou Normal University Jiangsu College Key Lab of Linguistic Sciences and Neuro-cognition Engineering Xuzhou Normal University Linguistic Science College Xuzhou Normal University School of Computer Science and Technology

A scheme for character restoration of Jiagu rubbings based on Poisson distribution and fractal geometry is proposed in this paper. The distribution characteristics of the connected regions on Jiagu rubbings is analyzed, and all the connected regions are recognized according to differences between these and their mathematical expectations. Regions are recognized as noise regions and filled if the differences are negative, while stroke regions are reserved. The attributes of the character image edges on Jiagu rubbings are also analyzed. The fractal dimensions of the character edge of Jiagu rubbings are calculated by means of statistics. The feature points are obtained using the cosine of the angle between the two vectors of the point and the consecutive two points. Different compression transformations with weighted coordinates are performed on different strokes and segments of the characters so as to smoothen the character edge of Jiagu rubbings images. Experimental results show that our scheme could successfully clear noise regions and polish the character edge of Jiagu rubbings.

关键词： Jiagu rubbings Poisson distribution fractal geometry fractal dimension compression transformation character restoration

RIGIDITY THEOREMS OF CLIFFORD TORUS

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Acta Mathematica Scientia 2010年第3期30卷 890-896页

作者：张运涛 Department of Mathematics Xuzhou Normal University

In this article, we prove that the Clifford torus S^1（√1-r^2）×^n-1（r） is the only closed hypersurface in the unit sphere S^n＋1（1） with infinite fundamental group, which satisfy r^2≥（n-1）/n,RicM≤C_（H）,and S≤S＋（H）.Moreover, we give a characterization of Clifford torus S^1（√1-r^2）×^n-1（r） with r^2=2n（1＋H^2）^-2（n-1）＋nH^2＋｜H｜√n^2H^2＋4（n-1）.

关键词： Principle curvatual Ricci curvature Clifford torus

C^MC^N D-computable state

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Science china(Physics,Mechanics & Astronomy) 2008年第9期51卷 1300-1307页

作者： LIU DongDong1,2 & DI YaoMin1 1 School of Physics & Electronic Engineering,xuzhou normal university,xuzhou 221116,china 2 School of Mathematics & Physics Science,xuzhou Institute of Technology,xuzhou 221008,china School of Physics & Electronic Engineering Xuzhou Normal University Xuzhou China School of Mathematics & Physics Science Xuzhou Institute of Technology Xuzhou China

The notions of D-computable state and D-concurrence are generalized to the CMCN system. A class of D-computable state on CMCN is given and the calculating method of the lower bound of D-concurrence is provided. Th... 详细信息

关键词： quantum entanglement entanglement of formation concurrence D-computable state

THE SECOND EXPONENT SET OF PRIMITIVE DIGRAPHS

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Chinese Annals of Mathematics,Series B 2000年第2期21卷 233-236页

作者： MIAO ZHENGKE(Department of Mathematics, Nanjing university, Nanjing 210093. china.)(Department of Mathematics, xuzhou {3. university, xuzhou 2.1009, china.) ZHANG KEMIN(Department of Mathematics, Nanjing university, Nanjing 210093. china.) Department of Mathematics Nanjing University Nanjing 210093 China Department of Mathematics Xuzhou Normal University Xuzhou 221009 China

Let D = (V, E) be a primitive digraph. The exponent of D, denoted byγ(D), is the least integer k such that for any u, v∈ V there is a directed walk of length k from u to v. The local exponent of D at a vertex u∈ V, denoted by exp_D (u), is the least integer k such that there is a directed walk of length k from u to v for each v ε V. Let V = {1,2,….,n}. Following [1], the vertices of V are ordered so that exp_D (1) ≤exp_D (2) ≤…≤exp_D(n) =λ(D). Let E_n(i):= {exp_D (i) ∈D PD_n}, where PD_n is the set of all primitive digraphs of order n. It is known that E_n(n) = {γ(D) D∈PD_n} has been completely settled by [7]. In 1998, E_n(1) was characterized by [5]. In this paper, the authors describe E_n(2) for all n≥2.

关键词： Primitive digraph Local exponent Gap

Global existence and blow-up of solutions to a parabolic system with nonlocal sources and boundaries

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Science china Mathematics 2007年第9期50卷 1251-1266页

作者： Ling-hua KONG~(1+) Ming-xin WANG~(2,3. 1 Department of Applied Mathematics,Dalian university of Technology,Dalian 116024,china 2 Department of Mathematics,Southeast university,Nanjing 210018,china 3.Department of Mathematics,xuzhou normal university,xuzhou 221116,china Department of Applied Mathematics Dalian University of Technology Dalian China Department of Mathematics Southeast University Nanjing China Department of Mathematics Xuzhou Normal University Xuzhou China

This paper deals with a semi-linear parabolic system with nonlinear nonlocal sources and nonlocal boundaries. By using super-and sub-solution techniques, we first give the sufficient conditions that the classical solution exists globally and blows up in a finite time respectively, and then give the necessary and sufficient conditions that two components u and ν blow up simultaneously. Finally, the uniform blow-up profiles in the interior are presented.

关键词： parabolic system nonlocal sources nonlocal boundary conditions blow-up set simultaneous blow-up uniform blow-up profile 3.K15 3.K65