一、不含时微扰论(非简并)在量子力学中我们学到了一些基本模型,比如谐振子、氢原子。对于这些基本模型,我们能直接解出系统的本征态和能级。而实际系统不可避免地会被外界干扰,这时系统的哈密顿量往往不再是可…
(图片侵删) 1.1 非简并(nondegenerate)微扰理论 微扰论(perturbation theory)诞生的意义在于薛定谔方程,大多数情况下,都是非常难解的,(哪怕是最简单的谐振子模型,其解析解都是非常复杂的)。于是乎,人们…
Time-independent perturbation theory is an approximation scheme that applies in the following context: we know the solution to the eigenvalue problem of the Hamiltonian H 0, and we want the solution to H = H 0 +H 1 where H 1 is small compared to H 0 in a sense to be made precise ...
We reformulate the time-independent perturbation theory for quasinormal modes and express the corrections to the complex energy in terms of matrix elements. One main feature of the results is the appearance of an alternative definition for the norm, which is finite for quasinormal modes. Explicit ...
Time-independent Perturbation Theory. Degenerate and nondegenerate states. 含时微扰理论:简并和非简并态。 www.myoops.org 5. MQ enables application designers to construct time-independent architectures. MQ使得应用程序设计人员能够构造长期有效的体系结构。 www.ibm.com 6. The jobs vary by company from ...
Diagrammatic analysis of adiabatic and time-independent perturbation theory for degenerate energy levels - Michels, Suttorp - 1978 () Citation Context ...icely when the ground state of H0 is non degenerate. When it is degenerate, that is when the eigenspace E0 associated to the lowest eigen...
网络时间独立扰量 网络释义 1. 时间独立扰量 插入反... ... "time-dependent perturbation" 时间相依扰量" "time-independent perturbation"时间独立扰量" "time-out" 潜时" ... www.guandang.com|基于2个网页
We formulate a computationally feasible method for calculating multiphoton ionization rates for atoms exposed to intense fields in the intensity regime where perturbation theory ceases to apply. The method is based on the time-independent picture of ionization, which starts with the Floquet ansatz. The...
The chapter discusses the time-independent diagrammatic approach to perturbation theory of fermion systems. The chapter explores the perturbation theory for a non-degenerate level. The formulas derived serves as a starting point for the ... J Paldus,J Cízek - 《Advances in Quantum Chemistry》 被...
We present a new method of calculation of the dispersion energy in the second-order symmetry-adapted perturbation theory. Using the Longuet-Higgins integral and time-independent coupled-cluster response theory, one shows that the general... PS Uchowski,R Moszynski - 《Journal of Chemical Theory ...