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    题名 作者 年代 出处 被引量
1理论研究中的量子化学计算方法显示文摘量子化学近阶段的高度发展使量子力学在自然科学各个领域都发挥着非常重要的作用,然而量子力学概念非常抽象,其主要包括求解Hartree Fock-Roothaan方程、半经验方法和密度泛函等,用于化学反应中的理论计算,可以找出势能面的最低能量,从而对反应机理的研究有很大的促进作用.龙威 2010宁夏师范学院学报2010,31,3:19
2Variation after Projection with Triaxially Deformed Nuclear Mean Field显示文摘Using our new method[1-2],we implemented an algorithm that performs variation after projection(VAP)on spin,isospin,and mass number of a triaxially deformed Hartree-Fock-Bogoliubov vacuum state[3].This is the first projected mean field study that includes all these quantum numbers.GAO Zao-chun Mihai Horoi Y.S.Chen 2015Annual Report of China Institute of Atomic Energy2015,,1:5
3THE THEORETICAL STUDIES OF PRODUCT ALIGNMENT OF THE REACTIONS OF Na,F WITH CH_3I显示文摘The NaI and IF product rotational alignment of the reactionsof Na,F+CH3I has been theoretically studied in a LEPS PES.Theproduct alignment versus the relative translational energy of the reactantshas been obtained.Ke Li HAN Guo Zhong HE Nan Quan LOU State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,CAS,Dalian 116012,China 1993Chinese Chemical Letters1993,4,6:3
4On Global Existence for Mass-supercritical Nonlinear Fractional Hartree Equations显示文摘In this paper, we consider the nonlinear fractional Schrodinger equations with Hartree type nonlinearity in mass-supercritical and energy-subcritical case. By sharp Hardy-Littlewood-Sobolev inequality and the Pohozaev identity, we established a threshold condition, which leads to a global existence of solutions in energy space.Dan WU 2017Acta Mathematicae Applicatae Sinica2017,33,2:1
5SYMMETRY OF POSITIVE SOLUTIONS FOR THE FRACTIONAL HARTREE EQUATION显示文摘In this paper, by using the method of moving planes, we are concerned with the symmetry and monotonicity of positive solutions for the fractional Hartree equation.刘祥清 2019Acta Mathematica Scientia2019,39,6:1
6RELATIVISTIC SELF-CONSISTENT FIELD CALCULATIONS WITH SPLINE METHOD显示文摘The nucleus is a system of many nucleons interacting via exchange of bosons. In order to describe the nuclear system, let us consider a model with the following Lagrangian:张金根 黄玲芳 邱锡钧 1985Chinese Science Bulletin1985,30,10:1
7Deformed Relativistic Hartree Theory in Coordinate Space and in Harmonic Oscillator Basis显示文摘The deformed relativistic Hartree theory(DRH)is solved both in coordinate space(DRH-c)and in harmonic oscillator basis(DRH-o).Results obtained from these two methods are compared in details.The DRH-c and DRH-o calculations give similar total binding energies,deformation,level structures and radii for nitrogen iso topes,while their descriptions on the density distributions for drip-line nuclei are very different.The large spatiai istributions of nucleon densities,which is crucial to understand a weakly bound system,can only be obtained by DRH-c calculations.This implies that the DRH theory should be solved in coordinate space in order to describe uclei close to the drip line.周善贵 孟杰 山路修平 杨泗春 2000Chinese Physics Letters2000,17,10:1
8H^m-Modified Wave Operator for Nonlinear Hartree Equation in Space of Dimension n≥2Miao Changxing (Institute of Applied physics and Computational Mathematics,Beijing 100088,China) 1997Acta Mathematica Sinica,English Series1997,13,2:1
9用相对论性密度依赖Hartree方法研究两体关联在晕核中的效应显示文摘用相对论性密度依赖的 Hartree方法研究晕核的基本性质 ,在晕核的唯象图景中 ,作为剩余相互作用的对关联效应对核晕的描述有关键作用 .用只有一个自由参数的模型 ,同时给出了晕核11Li,11Be和 19C的分离能和质量密度分布 。朱志远 蒋维洲 2001原子核物理评论2001,18,3:1
10An Effective Coulomb Interaction in Nuclear Energy Density Functionals显示文摘It is well-known that the charge-violating interaction is usually underestimated in nuclear many-body approaches,the so-called Nolen–Schiffer anomaly.In the framework of the Skyrme–Hartree–Fock(SHF)method,the effective two-body charge-symmetry breaking(CSB)and charge-independent breaking(CIB)interactions in nuclear medium are included.Dong Jianmin Shang Xinle Zuo Wei Niu Yifei Sun Yang 2019IMP & HIRFL Annual Report2019,,1:1
11LIGHT EMISSION FROM AN ELECTRON BEAM PASSING THROUGH A MAGNETIZED PLASMA显示文摘As a general rule, Smith-Purcell effect light radiation can be produced when free electrons pass through a slow wave structure. But this phenomenon has no practical use, because, only when e-beam graze the grating surface, or passes a high refractive medium (Cerenkov effect), can high coupling rate be obtained, but the medium or grating sustains damages.王之江 1983Chinese Science Bulletin1983,28,5:0
12Second-Order Contribution of the Incompressibility in Asymmetric Nuclear Matter显示文摘With the complementarity of the nucleonic three-body force,we present the saturation points of symmetric nuclear matter with different interactions adopted within the Brueckner-Hartree-Fock scheme,and a more accurate empirical parameterization function for the equation of state of symmetric nuclear matter and pure neutron matter.On the basis of this fit formula,the symmetry energy and its derivatives are investigated,and ultimately the higher-order coefficient of the isobaric incompressibility for isospin asymmetric nuclear matter is predicted.李增花 张大鹏 SCHULZE Hans-Josef 左维 2012Chinese Physics Letters2012,29,1:0
13Theoretical Analysis of 4f and 5p Inner-Shell Excitations of W-W^(3+) Ions显示文摘Detailed theoretical calculations are performed for the 4f and 5p inner-shell excitations of W-W^(3+) ions using the multiconfiguration Hartree–Fock method in order to better understand the origin of the XUV photoabsorption spectra of W atoms from the dual laser-produced plasma experiment(Costello et al.J.Phys.B 24(1991)5063 and the spectra of photon-induced single ionization of W^(q+) ions(q=1,2,3)(Müller et al.Phys.Scr.T1441(2011)014052)from photon-ions merged beam experiments,respectively.Two broad and strong resonances in the experimental spectra have also been theoretically identified mainly from 5p–5d resonance.The 4f–5d,6d and 5p–6d transitions also make a small contribution to each spectrum,which are superimposed on the 5p–5d transition arrays.Based on the assumption of a normalized Boltzmann distribution among the excited states,we succeed in reproducing spectra which are in good agreement with experiments.曹祥念 苏茂根 孙对兄 符彦飙 董晨钟 2012Chinese Physics Letters2012,29,11:0
14SU(2)×SU(2) QUASI-SPIN MODEL AND CONSTRAINED HARTREE-FOCK METHOD显示文摘In order to study the effectivity for the constrained Hartree-Fock(CHF)method,a quasi-spin model containing two kinds of interaction is proposed.The exact solution of the model Hamiltonian in SU(2)×SU(2)basis,the HF and some CHF solutions as well as the ground state phase transition are discussed.LIAO Jizhi 1990Chinese Physics Letters1990,7,6:0
15FINITE TEMPERATURE GREEN FUNCTIONS OF FERMION SYSTEMS BY STOCHASTIC QUANTIZATION显示文摘The finite temperature Green functions of the fermion systems was calcu-lated by using the stochastic quantization method.By properly approximation of the Langevin equations,Hartree-Fock,ring and ladder approximations of Green functions was obtained.陈仁 1989Chinese Physics Letters1989,6,6:0
16C_4分子的结构显示文摘人们对碳蒸汽化学的研究工作已取得一定进展。其中对CH及C1、C2和C3的结构、性质和化学反应等已有较多的了解。由于C4分子在碳蒸汽中含量低、结构不稳定等因素给研究工作带来一定困难,从而对它缺乏深入了解。本文着重介绍C4分子的结构,适当联系它的生长和化学反应,以供教学上的参考。袁云程 韩宝华 高大彬 1985化工高等教育1985,2,1:0
17Fission Properties of Neutron-Rich Nuclei around the End Point of r-Process显示文摘We studied the fission properties of neutron-rich nuclei278,286Cf around the end point of r-process by microscopic self-consistent approaches. The fission barriers and potential energy surfaces are obtained by constrained static Skyrme Hartree–Fock-BCS calculations. Fission fragments are studied by dynamical time-dependent Hartree–Fock+BCS calculations. Results show that286Cf has an octupole deformation at ground state, which can increase the fission barrier height by 1.1 Me V and enhance significantly the spontaneous fission half-life. To search possible fission channels, dynamical calculations with a broad coverage of initial deformations result in two slightly asymmetric peaks around A=128 and 150 for278Cf, and A=133 and 153 for286Cf. Very asymmetric fission channels as given by semi-empirical models are not found in our results.陈佳炜 裴俊琛 强雨 迟济怀 2023Chinese Physics Letters2023,40,1:0
18A Possible New Effect of Self-Consistency in the Relativistic Hartree-Fock Approximation显示文摘A new effect of self-consistency in the relativistic Hartree-Fock(HF)approximation suggested previously is con firmed by a renormalized calculation with the on-shell renormalization conditions.Two self-consistency schemes,ne requiring self-consistency in the HF potential(scheme P)and the other in the baryon propagator(scheme BP),are studied.It is pointed out that the on-shell renormalization conditions make the self-consistency require-ment in scheme P automatically satisfied.Our calculated results show that scheme P is a good approximation to scheme BP for the calculation of the baryon propagator and the self-consistency in scheme BP diminishes the continuum part of the spectral representation for the baryon propagator,while scheme P yields a baryon propagator which is the same as the HF result contributed by the single particle part of the above spectral representation alone.Further,it is demonstrated that the region of validity of the quasi-particle approximationmay depend on the renormalization conditions.姚玉洁 张海霞 朱江明 刘广洲 吴式枢 2000Chinese Physics Letters2000,17,10:0
19Sudden Jump of Hartree-Fock Solution and Phase Transition显示文摘The physical implication of a sudden jump of the Hartree-Fock solution is studied by means of a solvable model,where not only such jump occurs but also the phase transition(PT)of a many-particle system can be demonstrated explicitly.It is found that there is no close relation between the jump and PT.The reason for this irrelevancy is explored and explained.WU Shishu YAO Yujie JING Xiaogong ZHAO Guoquan 1991Chinese Physics Letters1991,8,9:0
20Site-Pairing of Electron in Doped C_(60)显示文摘Going beyond both a simple perturbative theory and Hartree-Fock treatment,the Gutzwiller variational scheme is employed to clarify the possibility of electron site-pairing in doped C_(60).It is shown that this pairing can be induced by electron-phonon interaction rather than electron-electron interaction.Our results are supported by EPR experiments.ZHANG Guoping FU Rongtang SUN Xin Y.Takahashi 1995Chinese Physics Letters1995,12,8:0
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