- #1
Kontilera
- 179
- 24
Hello!
I'm trying to understand QFT for the moment and have a question regarding the basic.
So we have a vectorspace (Hilbertspace) of our states. The operator \phi(x) measures the amplitude at point x, whereas the operator \pi(x) measures the momentum density..
The ladder operator
[itex]a^\dagger_p[/itex]
creates a state with momentum p. But it seems here that there are many different states with momentum p. Is the momentum density always homogenously distributed in this case?
I'm trying to understand QFT for the moment and have a question regarding the basic.
So we have a vectorspace (Hilbertspace) of our states. The operator \phi(x) measures the amplitude at point x, whereas the operator \pi(x) measures the momentum density..
The ladder operator
[itex]a^\dagger_p[/itex]
creates a state with momentum p. But it seems here that there are many different states with momentum p. Is the momentum density always homogenously distributed in this case?