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Quantum secret sharing between m-party and n-party with six states

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Science china(Physics,Mechanics & Astronomy) 2009年第8期52卷 1191-1202页

作者： GAO Ting1,YAN FengLi2,3 & LI YouCheng2,3 1 College of Mathematics and Information Science,hebei normal university,shijiazhuang 050016,china 2 College of Physics and Information Engineering,hebei normal university,shijiazhuang 050016,china 3 hebei Advanced Thin Films Laboratory,shijiazhuang 050016,china College of Mathematics and Information Science Hebei Normal University Shijiazhuang 050016 China College of Physics and Information Engineering Hebei Normal University Shijiazhuang 050016 China hebei Advanced Thin Films Laboratory Shijiazhuang 050016 China

A quantum secret sharing scheme between an m-party group and an n-party group is proposed using three conjugate bases.A sequence of single photons,each of which is prepared in one of the six states,is used directly to encode classical information in the quantum secret sharing *** this scheme,each of all m members in group 1 chooses randomly his/her own secret key individually and independently,and directly encodes his/her respective secret information on the states of single photons via unitary operations,then the last one sends 1/n of the resulting qubits to each member of group *** measuring their respective qubits,all members in group 2 share the secret information shared by all members in group *** renders impossible a Trojan horse attack with a multi-photon signal,a fake-signal attack with EPR pairs,an attack with single photons,and an attack with invisible *** give the upper bounds on the average success probabilities for dishonest agent eavesdropping encryption using the fake-signal attack with any two-particle entangled states.

关键词： quantum secret sharing security EPR pairs

ON THE EMPTY CONVEX PARTITION OF A FINITE SET IN THE PLANE

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Chinese Annals of Mathematics,Series B 2002年第4期23卷 487-494页

作者： XU CHANGQING DING RENDepartment of Mathematics, hebei normal university, shijiazhuang 050016, china. Department of Mathematics Hebei Normal University Shijiazhuang 050016 China

The authors discuss the partition of a finite set of points in the plane into empty convex polygons, and improve some upper bound and lower bound in the related enumeration problems.

关键词： Partition Disjoint partition Empty partition

Quantum secret sharing between multiparty and multiparty with four states

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Science china(Physics,Mechanics & Astronomy) 2007年第5期50卷 572-580页

作者： YAN FengLi1, GAO Ting2 & LI YouCheng1 1 College of Physics and Information Engineering, hebei normal university, shijiazhuang 050016, china 2 College of Mathematics and Information Science, hebei normal university, shijiazhuang 050016, china 1. College of Physics and Information Engineering Hebei Normal University Shijiazhuang 050016 China 2. College of Mathematics and Information Science Hebei Normal University Shijiazhuang 050016 China

A protocol of quantum secret sharing between multiparty and multiparty with four states was presented. It was shown that this protocol can nullify the Trojan horse attack with a multi-photon signal, the fake-signal attack with Einstein-Podolsky- Rosen pairs, the attack with single photons, and the attack with invisible photons. In addition, the upper bounds of the average success probabilities were given for dishonest agent eavesdropping encryption using the fake-signal attack with any two-particle entangled states.

关键词： quantum secret sharing, security, Einstein-Podolsky-Rosen pairs

Influence of MnO_2 on the photocatalytic activity of P-25 TiO_2 in the degradation of methyl orange

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中国科学：化学英文版 2008年第2期51卷 179-185页

作者： LI ShunJun1, MA ZiChuan1,2, WANG Lin1 & LIU JingZe2 1 College of Chemistry and Material Sciences, hebei normal university, shijiazhuang 050016, china 2 College of Life Science, hebei normal university, shijiazhuang 050016, china College of Chemistry and Material Sciences Hebej Normal UniversityShijiazhuang 050016China College of Life Science Hebei Normal UniversityShijiazhuang 050016China

Influences of α-MnO2, β-MnO2, and δ-MnO2 on the photocatalytic activity of Degussa P-25 TiO2 have been investigated through the photocatalytic degradation of methyl orange. The TiO2 photocatalyst, before and after being contaminated by MnO2, was characterized by UV-visible diffuse reflectance spectroscopy (UV-vis DRS), photoluminescence (PL), and X-ray photoelectron spectroscopy (XPS). The results showed that photocatalytic activity of TiO2 could be inhibited significantly or completely deactivated due to the presence of even a small amount of MnO2 particles. It was found that the poisoning effect varied with the crystal phases of MnO2 and the effect was in the order δ-MnO2 >α-MnO2 >β-MnO2. The poisoning effect was attributed to the formation of heterojunctions between MnO2 and TiO2 particles. The heterojunctions changed the chemical state of Ti4+ and O2 sites in the crystalline phase of TiO2. MnO2 in contact with TiO2 particles also broadens the band-gap of TiO2, which decreases UV absorption of TiO2. It can also create some deep impurity energy levels serving as photoelec-tron-photohole recombination center, which accelerates the electron-hole recombination.

关键词： TiO2 MnO2 deactivation photocatalysis methyl orange

The universality and biological significance of signal molecules with intracellular-extracellular compatible functions

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Chinese Science Bulletin 2000年第19期45卷 1729-1734页

作者： SUN DayeInstitute of Molecular Cell Biology, hebei normal university, shijiazhuang 050016, china Institute of Molecular Cell Biology Hebei Normal University Shijiazhuang China

Generally, cell signal molecules are classified into the extracellular signal molecules (the first messengers) and the intracellular signal ones (the second messengers). Cyclic adenosine monophosphate (cAMP), calcium ions and calmodulin (CaM) are the traditional intracellular messengers, but they are also present in extracellular matrix (ECM). Some of them have been discovered to act as the first messengers through cell surface receptors. Other second messengers, such as cyclic guanosine monophosphate (cGMP), cyclic adenosine diphosphate ribose (cADPR) and annexin, are also found existing outside animal and plant cells. The existence of these messengers with intracellular-extracellular compatible functions in cells may be a regular biological phenomenon. These compatible messengers might be the communication factors between intracellular and extracellular regions or among the cell populations, and are also important in regulating cell development procedure.

关键词： intracellular signal extracellular signal compatible messenger.

Chemiluminescence Determination of Molybdenum by on-Line Reduction with a Flow Injection System

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Chinese Chemical Letters 2000年第5期11卷 427-430页

作者： Zhi Jia ZHU (Experimental Center, hebei normal university, shijiazhuang 050016) hebei normal Univ Expt Ctr Shijiazhuang 050016 Peoples R China

The chemiluminescence (CL) reaction between lucigenin (Lu) and molybdenum (III) produced by a Jones reductor was investigated using a flow injection system. On the basis of this, a novel method for the determination of trace amount of molybdenum has been established. The emission intensity was linear with molybdenum concentration in the range of 0.1-1000 ng/mL; the detection limit was 0.02 ng/mL molybdenum; the relative standard deviation was less than 2% for the determination of 0.1 ng/mL molybdenum (n=11). The method has been applied successfully to the analysis of trace molybdenum in water and steel samples.

关键词： chemiluminescence analysis reductant flow-injection molybdenum lucigenin

Kinetics Study on the Thermal Decomposition of Europium p-methyl-benzoate Complex with 1,10-penanthroline under Non-isothermal Con-ditions

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Rare Metals 2001年第2期20卷 133-136页

作者： Huifang Yang, Jianjun Zhang, Ruifen Wang (Department of Material, Shjiazhuang Railway College, shijiazhuang 050043, china Experimental Center, hebei normal university, shijiazhuang 050016, china) shijiazhuang Railway Coll Dept Mat Shijiazhuang 050043 Peoples R China hebei normal Univ Expt Ctr Shijiazhuang 050016 Peoples R China

The thermal decomposition reaction of Eu-2(p-MBA)(6)(PHEN)(2) (p-MBA=CH3C6H4COO, methylbenzoate; PHEN=C12H8N2, 1,10-phenanthroline) was studied in a static atmosphere using TG-DTG method. The thermal decomposition process of the complex was determined and its kinetics was investigated. Kinetic parameters were obtained from the analysis of TG-DTG curves by means of the Achar method and the Madhusudanan-Krishnan-Ninan (MKN) method. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: f(alpha) =(1-alpha)(2), g(alpha) = (1-alpha)(-1)-1. The activation energy for the first stage is 255.18 kJ/mol, the entropy of activation DeltaS is 227.32 J/mol and the Gibbs free energy of activation DeltaG is 128.04 W/mol.

关键词： thermal decomposition non-isothermal kinetics mechanisms Eu(III) complex

Probabilistic teleportation via a non-maximally entangled GHZ state

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Chinese Science Bulletin 2010年第10期55卷 902-906页

作者： YAN FengLi1,2 & YAN Tao1,2 1 College of Physics Science and Information Engineering,hebei normal university,shijiazhuang 050016,china 2 hebei Advanced Thin Films Laboratory,shijiazhuang 050016,china College of Physics Science and Information Engineering Hebei Normal University Shijiazhuang China hebei Advanced Thin Films Laboratory Shijiazhuang China

We present a scheme for probabilistic teleportation via a non-maximally entangled GHZ *** teleportation will succeed with a calculable *** teleportation process requires the sender to make a generalized Bell state measurement,the cooperator to perform a generalized X basis measurement,and the receiver to perform a collective unitary transformation and to make a measurement on an auxiliary *** success probability of the teleportation is *** also obtain the maximum of the success probability of the teleportation.

关键词：成功概率 GHZ态隐形传送纠缠 Bell态测量量子隐形传态传输过程辅助粒子

Preparation of Ultrafine Li4+x AlxSi1-xO4 by Sol-Gel Method and Its Ionic Conductivity

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Rare Metals 2000年第3期19卷 231-236页

作者： Chen Rufen,Song Xiuqin and Liu Huating (陈汝芬) (宋秀芹) (刘华亭) Department of Chemistry,hebei normal university,shijiazhuang 050016,china hebei normal Univ Dept Chem Shijiazhuang 050016 Peoples R China

Solid electrolyte Li 4+ x Al x Si 1- x O 4 ( x =0～0.5) was prepared by sol gel *** powder samples were characterized by DTA TG,TEM,SEM and XRD. Ionic conductivity of the sintered sample was determined by means of A C impedance *** experimental results show that the solid solution range was 02O 3 added,the maximum conductivity of Li 4.4 Al 0.4 Si 0.6 O 4 was 8.612×10 -3 S·cm -1 at 300℃.The average grain size of samples was 70 *** sample prepared by sol gel method required lower temperature and presented higher ionic conductivity compared with the samples by the conventional solid state reaction.

关键词： Li 4+ x Al x Si 1- x O 4 Sol Gel method Ionic conductivity