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fermion systems
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  费米子系统
     INVESTIGATION OF THE THERMOELECTRIC POWER AND SPECIFIC HEAT OF THE HEAVY FERMION SYSTEMS CeAl_3 AND CeCu_2Si_2
     重费米子系统CeAl_3和CeCu_2Si_2的温差电势率和比热的研究
短句来源
     QUANTUM STATISTCAL MECHANICS OF FERMION SYSTEMS IN THE COHERENT-STATE REPRESENTATION
     费米子系统量子统计力学的相干态表述
短句来源
     Secondly, the constrained path quantum Monte Carlo method to compute the ground-state properties of interacting fermion systems is described in detail. The validity of the algorithm has been verified through the calculation of the ground-state energy and the various correlation functions of the electronic system in the two-dimensional one-band Hubbard model.
     然后详细叙述了用来研究相互作用费米子系统基态性质的约束路径量子蒙特卡罗方法,通过二维单带Hubbard模型中电子系统的基态能量以及各种关联函数的计算,检验了这种算法的可行性与正确性。
短句来源
     This method may be developed to apply for the lattice fermion systems.
     该方法可以发展应用于格点费米子系统
短句来源
  “fermion systems”译为未确定词的双语例句
     THE GENERALIZED MEAN FIELD EXPANSIONS FOR MANY FERMION SYSTEMS
     原子核费密多体系统平均场近似的推广
短句来源
     The formalism presented here can be applied to nuclear as well as other many fermion systems in both equilibrium and nonequilibrium states.
     本文的讨论也适用于处于平衡或非平衡定常态的其他多体系统。
短句来源
     Abstract In this paper we shall discuss similarities between the two fermion systems——atomic metal clusters and nuclei: such as shell and super shell structures, collective oscillations, Jahn Teller effect, fusion and fission, etc, as well as their differences due to different coherence forces for their constituents.
     本文重点讨论金属原子团簇和原子核两费米子体系之间相似之处,如饱和性、壳结构、集体振荡、Jahn-Teler效应,裂变和聚合反应等,以及由于两者凝聚力的本质差别所造成的不同点。
短句来源
  相似匹配句对
     Teleportation of Indistinguishable Fermion Particles
     全同费米子系统的量子隐形传态
短句来源
     ON THE GAPLESS REGION OF HEAVY FERMION SUPERCONDUDTORS
     重费密子超导体的无能隙区
短句来源
     THE GENERALIZED MEAN FIELD EXPANSIONS FOR MANY FERMION SYSTEMS
     原子核费密多体系统平均场近似的推广
短句来源
     QUANTUM STATISTCAL MECHANICS OF FERMION SYSTEMS IN THE COHERENT-STATE REPRESENTATION
     费米子系统量子统计力学的相干态表述
短句来源
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  fermion systems
Theory of the pseudogap formation in 2D attracting fermion systems
      
Quasielastic magnetic scattering of neutrons by heavy-fermion systems
      
It is demonstrated that the dependence of the scattering cross section of the spin liquid on the energy transfer has the same shape as the quasielastic peak observed experimentally in heavy-fermion systems.
      
Electronic structure of cerium heavy-fermion systems
      
The obtained data on the temperature dependence of the thermopower coefficient S for the YbMgCu4 compound confirm that this compound belongs to heavy-fermion systems.
      
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A model Hamiltonian of interacting Boson-Fermion system is given and this modelHamiltonian is solved with siniority v≤2. The calculation shows that the back-ben-ding phenomana can be well discribed.

本文给出了一种相互作用玻色子-费米子模型哈密顿量,在先辈数v≤2的情况下对此模型哈密顿量进行了求解和讨论。结果表明,“回弯”现象的一系列特性可以被很好地描述。

As an extension of the method presented in reference [4], this paper concerns with the transformation from Ising spin S=1 systems to a Fermion system in which the total number of particles is not a constant. We obtained rigorously the ground state energy of the antiferromagnetics of Ising S=1 fcc lattice with nearest neighbors and next nearest neighbors interaction in an arbitrary magnetic field, and also the phase equilibrium diagram at T = OK.

本文用文献[4]中提出的方法,变S=1的Ising体系成一个粒子数不守恒的费密体系,严格地求得了具有最近邻及次近邻相互作用的反铁磁Ising晶格在任意外场下的基态能量,得到了零温的相图。

A thertmodynamic perturbation theory of the Heisenberg ferromagneis is developed, which identifies a perturbation part in the motion equation of the spin operator. After appropriate "renormalization"the perturbation expansion of the Green's function has the same form as that for fermion systems. Thus the Feynman diagrammatic technique can be extended to spin systems. This theory has the distinguishing feature of separating the kinetic interactions from the dynamic interactions.Then this theory is...

A thertmodynamic perturbation theory of the Heisenberg ferromagneis is developed, which identifies a perturbation part in the motion equation of the spin operator. After appropriate "renormalization"the perturbation expansion of the Green's function has the same form as that for fermion systems. Thus the Feynman diagrammatic technique can be extended to spin systems. This theory has the distinguishing feature of separating the kinetic interactions from the dynamic interactions.Then this theory is applied to analyzing various decoupling approximations in Green's function method. And a new decoupling procedure is proposed, which can give the low temperature expansion of magnetization correct up to the T4 term.

本文建立了海森伯铁磁体的热力学微扰理论,它在自旋算符的运动方程中分出了微扰部分,格林函数的微扰展式在经过适当的“重整化”以后与费密子体系的形式相同,从而可以把Feynman图解方法应用于自旋体系。这个微扰理论的特点是能将运动学相互作用与动力学相互作用分离。 在本文的后一部分,利用上述微扰理论分析和澄清了双时格林函数的各种切断近似,并在此基础上提出了一种新的切断近似,它能得出磁化强度的正确低温展式。

 
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