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A nearly deterministic scheme for generation of multiphoton GHZ states with weak cross-Kerr nonlinearity

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Chinese physics B 2011年第10期20卷 91-95页

作者：王奕叶柳方保龙 School of physics and Material Science Anhui University teaching and research section of physics School of Life Sciences Anhui Medical University

We propose a scheme to generate polarization-entangled multiphoton Greenberger-Horne^Zeilinger （GHZ） states based on weak cross-Kerr nonlinearity and subsequent homodyne measurement. It can also be generalized to pr... 详细信息

关键词： GHZ state cross-Kerr nonlinearity quantum entanglement

Effects of photon addition on the quantum nonlocality of squeezed entangled coherent states

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Chinese physics B 2012年第9期21卷 81-87页

作者：周本元邓磊段永法喻莉李高翔 physics teaching section of Basic Course Department Air Force Early Warning Academy Department of physics Central China Normal University

Effects of photon addition on the quantum nonlocality of squeezed entangled coherent states for Bell-inequality tests are studied theoretically. By utilizing the method of photon-parity measurement, it is found that photon addition can always increase the degrees of Bell violations within a certain parameter range. A possible scheme for generating photon-added squeezed entangled coherent states is proposed.

关键词： quantum nonlocality photon addition squeezed entangled coherent states

Optimization of vinegar-steaming process for Wuweizi (Fructus Schisandrae Chinensis) with response surface method

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Journal of Traditional Chinese Medicine 2013年第5期33卷 682-685页

作者： Yan Zhang Kangwei Li Kuan Yang Xing Fan Mengxin Zhang teaching and research section of Pharmacognosy of Pharmacy Department Xi'an Medical University

OBJECTIVE:To optimize the vinegar-steaming process of Wuweizi(Fructus Schisandrae Chinensis)using the response surface method(RSM)based on the Box-Behnken ***:A regression model was constructed with the response variables,the content of Deoxyschizandrin,and the three explanatory factors:length of steaming time,the quantity of vinegar and length of moistening time to evaluate the effects on the processing of Wuweizi(Fructus SchisandraeChinensis).RESULTS:There was a linear relationship between the content of Deoxyschizandrin and the three explanatory *** the steaming time was5.49 h,with 2.365 g of vinegar added and a moistening time of 4.13 h,the content of Deoxyschizandrin reached the maximum predicted value of0.1076%,and under the conditions the average content of Deoxyschizandrin was 0.1058%.CONCLUSION:The correlation coefficient of thenonlinear mathematical model was relatively high and the model matched the data well,potentially providing a method for the study of the steaming process.

关键词： Processing Wuweizi(Fructus SchisandraeChinensis) Vinegar-steaming Regression analysis Response surface method Correlation coefficient

Thermodynamics and overcharging problem in extended phase space of charged AdS black holes with cloud of strings and quintessence under charged particle absorption

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Chinese physics C 2021年第2期45卷 365-376页

作者： Jing Liang Benrong Mu Jun Tao physics teaching and research section College of Medical TechnologyChengdu University of Traditional Chinese MedicineChengdu 611137China Center for Theoretical physics College of PhysicsSichuan UniversityChengdu 610064China

The thermodynamics and overcharging problem in RN-AdS black holes with a cloud of strings and quintessence are investigated by the absorption of scalar particles and fermions in extended phase *** cosmological constant is treated as the pressure of the black *** parameters related to quintessence and the cloud of strings are treated as thermodynamic *** find that the first law of thermodynamics is satisfied and the second law of thermodynamics is ***,we find that near-extremal and extremal black holes cannot be overcharged.

关键词： overcharging problem cloud of strings quintessence

Thermodynamic instability of 3D Einstein-Born-Infeld AdS black holes

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Chinese physics C 2021年第6期45卷 202-208页

作者： Hongmei Jing Benrong Mu Jun Tao Peng Wang Center for Theoretical physics College of PhysicsSichuan UniversityChengdu 610065China physics teaching and research section College of Medical TechnologyChengdu University of Traditional Chinese MedicineChengdu 611137China

Super-entropic black holes possess finite-area but noncompact event horizons and violate the reverse iso-perimetric *** has been conjectured that such black holes always have negative specific heat at constant volume C_(V)or negative specific heat at constant pressure C_(p)whenever Cy>0,making them unstable in extended *** this paper,we describe a test of this instability conjecture with a family of nonlinear electro-dynamic black holes,namely 3D Einstein-Bom-Infeld(EBI)AdS black *** results show that when nonlinear electrodynamics effects are weak,the instability conjecture is ***,the conjecture can be violated in some parameter region when nonlinear electrodynamics effects are strong *** observation thus provides a counter example to the instability conjecture,which suggests that super-entropic black holes may be thermodynamically stable.

关键词： Einstein-Bom-Infeld black holes super-entropic black holes black hole thermodynamics thermodynamic instability

Weak cosmic censorship conjecture in the nonlinear electrodynamics black hole under the charged scalar field

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Communications in Theoretical physics 2020年第1期72卷 89-95页

作者： Tianhao Bai Wei Hong Benrong Mu Jun Tao Center for Theoretical physics College of PhysicsSichuan UniversityChengdu610065China physics teaching and research section College of Medical TechnologyChengdu University of Traditional Chinese MedicineChengdu 611137China

In this paper,we study the thermodynamics and the weak cosmic censorship conjecture of the nonlinear electrodynamics black hole under the scattering of a charged complex scalar *** to the energy and charge fluxes of the scalar field,the variations of this black hole’s energy and charge can be calculated during an infinitesimal time *** scalar field scattering,the variation of the black hole is calculated in the extended and normal phase *** the normal phase space,the cosmological constant and the normalization parameter are fixed,and the first and second laws of thermodynamics can also be *** the extended phase space,the cosmological constant and the normalization parameter are considered as thermodynamic variables,and the first law of thermodynamics is valid,but the second law of thermodynamics is not ***,the weak cosmic censorship conjecture is both valid in the extended and normal phase spaces.

关键词： nonlinear electrodynamics black hole weak cosmic censorship conjecture complex scalar field thermodynamics

Deterministic Quantum Secure Direct Communication with Dense Coding and Continuous Variable Operations

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Communications in Theoretical physics 2009年第4期51卷 648-652页

作者： HAN Lian-Fang CHEN Yue-Ming YUAN Hao teaching and research section of physics School of Basic Medical Science Anhui Medical University Hefei 230032 China Department of Mathematics and physics West Anhui University Lu＇an 237012 China

We propose a deterministic quantum secure direct two check photon sequences are used to check the securities of the communication protocol by using dense coding. The channels between the message sender and the receiver. The continuous variable operations instead of the usual discrete unitary operations are performed on the travel photons so that the security of the present protocol can be enhanced. Therefore some specific attacks such as denial-of-service attack, intercept-measure-resend attack and invisible photon attack can be prevented in ideal quantum channel. In addition, the scheme is still secure in noise channel. Furthurmore, this protocol has the advantage of high capacity and can be realized in the experiment.

关键词： ping-pong protocol continuous variable operations quantum secure direct communication security capacity

Influence of Temperature on Electrochemical Performances of Rare Earth Based Hydrogen Storage Material

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Journal of Wuhan University of Technology(Materials Science) 2006年第1期21卷 19-21页

作者：李志尊 teaching and research section of Machinery Design Ordnance Engineering CollegeShijiazhuang 050003China

In view of the higher temperature of large-size NilMH battery in electric vehicle, the effect of temperature on electrochemical performances of hydrogen storage alloy Ml （ NiCoMnTi ）5 was investigated systematically. The results show that the electrochemical performances of alloy vary drastically with temperature changing. As temperature rises, the hydrogen equilibrium pressure increases, the width of hydrogen desorption plateau decreases and the gradient increases, leading to a decline of capacity. When temperature rises from 20 ℃ to 80 ℃ , the discharge capacity of the alloy decreases from 309.11 mA· h· g^-1 to 227.64 mA· h· g^-1 , but the high rate dischargeability is improved markedly. Higher temperatures also bring about a significant decrease in the cycling stability and self-discharge property. X-ray diffraction analysis indicates that the alloy has a single phase with CaCu5-type LaNi5 structure.

关键词： temperature hydrogen storage alloy electrochemical performance

STABILITY OF SUBHARMONICS AND BEHAVIOUR OF BIFURCATIONS TO CHAOS ON TORAL VAN DER POL EQUATION

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Acta Mathematicae Applicatae Sinica 1990年第1期6卷 88-96页

作者：赵晓华李继彬 teaching and research section of Mathematics Kunming Institute of Technology China

One of the basic problems in bifurcation theory is to understand the way in whichhorseshoes are created. In this paper, we study the bifurcation behavior exhibited by the toral Vander Pol equation subject to periodic ... 详细信息

关键词： der STABILITY OF SUBHARMONICS AND BEHAVIOUR OF BIFURCATIONS TO CHAOS ON TORAL VAN DER POL EQUATION DER POL