集体激发 meaning in Chinese
collective excitation
Examples
- Using the fully consistent rrpa method , we have studied the properties of collective multipole excitations for several closed - shell and closed sub - shell nucleus in the isoscalar modes and isovector modes
计算结果显示，从fermi海核子态到dirac海负能核子态形成的对激发在核的集体激发中的贡献很重要，尤其是对核的同位旋标量激发模式。 - In this paper , we introduce quantum theory into the liquid crystals in order to research the collective effect ( i . e . the physics effect produced by many - body effect and collective excitation ) . in this way , we research the microscopic theory of nematic phase and cholesteric phase
为了探索其集体效应(多体效应以及集体激发导致的物理效应) ，本文将量子理论引入到液晶体系，研究向列相和胆甾相的微观理论。 - At the other hand , we can perform the rrpa calculation with the continuum replaced by a set of outgoing single particle resonances , it indicates that the resonances in the continuum play an important role in the description of nuclear dynamical processes , such as collective giant resonances . energies , widths and wave functions of the single particle resonant continuum are determined by solving scattering states of the dirac equation with proper asymptotic conditions for the continuous spectrum in the r ' elativistic mean field theory . the relativistic regular and irregular coulomb wave functions are calculated numerically
在进行相对论无规位相近似计算时将连续谱中所有的正能态用单粒子共振态来代替，并且在计算中采用单粒子共振态的真实宽度，利用这种方法我们计算了核的同位旋标量巨八极共振响应函数，并且和考虑了连续谱中所有正能态贡献的结果进行比较，计算结果表明，连续谱中只考虑单粒子共振态对核的集体激发的贡献时，给出的响应函数基本上能够重现考虑了所有正能态贡献时的计算结果，这说明了在核的集体激发中，连续谱中主要是单粒子共振态的贡献。 - Up to now , the method , we used in studying the properties of collective multipole excitations of nuclei , treat the continuum by a discretization procedure with expanding wave functions in a harmonic oscillator basis . this approximation can be justified for very narrow resonances and gives a global description of the contributions from the continuum . a complete treatment of the continuum can be carried out by the continuum rrpa with a green " s function method
为了解决这些问题，需要改进相对论无规位相近似方法对z连续态的处理，采用连续相对论无规位相近似计算，通过格林函数方法可以严格处理连续态在核的集体激发中的贡献，并用来描述核的集体巨共振性质，包括核的巨共振能量、巨共振峰的强度以及巨共振宽度等重要的物理量。