共查询到20条相似文献,搜索用时 15 毫秒
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A hydrodynamic model. is used to study the electrodynamics of a quasi-(1+1)-dimensional electron gas arranged in a periodic array and neutralized by rigid inert positive background The theory is applied to discuss a new model of quasi-(1+1)-dimensional electron gas with a complex unit cell and an analytical expression of the dispersion relation for this system is derived. The results are the same as. those der-ived caith the semi-classical theory dealing with collective excitations. 相似文献
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氦原子的哈密顿量在四个空间的并空间内被对角化从而得到诸1Se态的解。对波函数进行了仔细的分析,找出了内部结构的一些特征。
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The differential and integrated cross section data for the hypercharge exchange reactions πp→K°(1420)Λ, K - p→f°Λ and K - p→f′Λ at 4 GeV/c are fitted by using as imple Regge pole model with phenorncnological residue functions. It is assumed that each of the two non-degenerate K* and K** trajectories, exchanged in this reaction, is coupled only to one of the two independent helicity amplitudes. 相似文献
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本文利用一维圆柱等离子体输运编码(TRANPY),编制了模拟锯齿振荡的大型编码(SAWMOD)。对锯齿振荡的研究,我们选用了两种具有代表性的理论模型:重联模型和湍流模型,后者特别适用于低qa放电的锯齿特性研究。重联模型的锯齿振荡是由于磁力线的完全重联引起的,而湍流模型的锯齿振荡是因为微观湍流或磁力线的随机化而产生的。最后,我们将HL─1装置的一次典型高密放电的参数代入(SAWMOD)编码,运算结果表明,重联模型和湍流模型均能解释实验观测的锯齿现象,理论模拟与实验结果符合较好。 相似文献
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By using the fusion method, we give the spin-1 XXX chain associated with sl2 with two arbitrary spin boundary impurities. Then the exact diagonalized Hamiltonian of this model was obtained by the means of Bethe ansatz method. 相似文献
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HL—1装置铁芯变压器气隙研究 总被引:2,自引:2,他引:0
本文对HL-1装置铁芯变压器气隙进行了实验研究和理论计算。模拟实验给出了不同气隙情况下,空载和负载放电时,等离子体区的杂散场和铁芯磁化曲线测试结果。并用HL-1装置的理论计算值及力线分布做了验证。 相似文献
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LEED analysis of the laser annealed Si(1 1 1)-(1 × 1) surface shows that a model with a graphite-like top double layer of atoms with a spacing of 2.95±0.02 Å from the second double layer describes the LEED data as well as the Zehner model, but involves large displacements of the atoms normal to the surface as required by ion scattering results. It is suggested that this model provides a natural interpretation of the low energy He atom scattering data for the Si(1 1 1)-(7 × 7) surface. 相似文献
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Using the path integral method for handling the anomaly problem under the comoving representation,we present a unified scheme for deriving the bononization of fermion fields in (1+1) dimensions.The massless Thirring model with an external electric field,and the Gross-Neveu model with internal SU(N) symmetry,as two examples for abelian and nonabelian bosonization,are discussed repectively in some detail. 相似文献
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本文在Grabowski模型基础上,提出了一种描述TICT态生成动力学的理论模型,并采用时间相关单光予计数荧光光谱方法,测量了香豆素C1F和C2F在醇类溶剂中的荧光寿命,考察了各种溶剂效应(极性、粘度和温度)对TICT态生成速率的影响,并将结果与DSE关系比较,指出在醇类溶剂中,氢链效应的影响是十分重要的. 相似文献