共查询到19条相似文献,搜索用时 62 毫秒
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在赝自旋对称性条件下,分别求解了在M rse型和Tan2(πηr)型标量势与矢量势场中运动的相对论粒子的Klein-Gordon方程和Dirac方程,给出了它们的束缚态能谱和相对论性波函数. 相似文献
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本文探讨了现有量子场论和量子化复合场论之间的内在联系。发现在梯形近似下,它们是自洽并有内在联系的;但在更一般的非梯形近似的情况下,这种内在联系并未找到。
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APPLYING THE HOMOTOPY EQUIVALENCE TRANSFORMATION OF TOPOLOGICAL SPACE SETS TO THE TOPOLOGICAL CLASSIFICATION OF STATES AND DEFECTS IN ORDERED MEDIA 下载免费PDF全文
In this paper the application of homotopy equivalence transformation (HET) of topological space sets to the topological classification of states and defects in ordered media is discussed. Firstly, an argument is pres-ented about the idea that for simplifying and even working out the classification and constructing homotopy class sets into groups, it is crucial to utilize the HET. As the theoretical basis for doing this we sum up the relevant results in homotopy theory into a theorem, called the "invariance theorem for HET". Secondly, in order to favor the utilization of this theorem, several propositions on homotopy equivalence between space sets are given. Finally, the absolute and relative topological dassification of states and defects is systemtically studied. The main results obtained are embodied in eight theorems. 相似文献
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孙金锋 《原子与分子物理学报》1997,14(2):206-209
总结讨论了反映电子-原子散射过程中交换、关联极化、吸收(非弹性散射)和相对论效应的势模型及其在电子被原子、分子散射截面计算中的应用 相似文献
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本文用量子力学方法研究在一腔中的等离子体与电磁场的相互作用,求得系统的哈密顿量的本征值和本征态,这本征态是一种广义压缩相干态。还求得在广义压缩相干态,场的压缩、反聚束、亚泊松统计等效应以及测量相算符的有关公式,这些效应均为时间守恒的。
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对Schr?dinger方程引入修饰势,并将波函数展开为Floquet分波,即可实施分离变量。强光场时弱耦合法选取合适微扰量,径向波动方程可逐步近似求解。以圆极化强光场为例,计算了散射波函数、散射矩阵和截面。重要结论是:强光场下将出现多光子过程,对应m次多光子过程有相应的共振谱线族,谱线能量约为m?ω,并给出谱线强度计算公式。
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