All Questions
Tagged with scattering eigenvalue
3
questions
0
votes
1
answer
146
views
Green function in scattering theory
I'm having a bit of trouble with a step in scattering theory.
Context:
The Schrödinger equation for a two-body scattering problem can be written as:
$$
(E - H_0) |\psi\rangle = V |\psi\rangle.
$$
Here,...
0
votes
1
answer
80
views
Would a two-particle pure momentum eigenstate scatter in QED?
Okay, I know a momentum eigenstate is not realizable in practice since it's not normalizable. But say we ignore the normalizability constraint, and just apply the rest of the theory. My question is, ...
2
votes
1
answer
137
views
When does the "norm of quasi-eigenvectors" matter in calculations? For which physical results are these even used?
Which physical system in nonrelativistic quantum mechanics is actually described by a model, where the norm of the "position eigenstate" (i.e. the delta distribution as limit of vectors in the Hilbert ...