What Is The First Order Perturbation Theory?
What Is The First Order Perturbation Theory? The first-order perturbation equation includes all the terms in the Schrödinger equation ˆHψ=Eψ that represent the first order approximations to ˆH,ψ and E. This equation can be obtained by truncating ˆH,ψ and E after the first order terms. What is the concept of perturbation theory? : any of