- #1
Hymne
- 89
- 1
Didnt seem to be many threads about this subject although I don't find it trivial at all..
Lets start with a question:
If we now have <N_i - 1|â_i|N_i> = N_i^0.5 but let â operate on our ket it should give:
<N_i - 1||N_i - 1> = N_i^0.5 its adjoint however is the creation operator (right?) which gives if we let i work on our bra:
<N_i|N_i > = <N_i - 1||N_i - 1> = N_i^0.5
This seems strange! Because then the probabilitiy of finding N particles in state i is independent of N. Or where do I get i wrong?
Lets start with a question:
If we now have <N_i - 1|â_i|N_i> = N_i^0.5 but let â operate on our ket it should give:
<N_i - 1||N_i - 1> = N_i^0.5 its adjoint however is the creation operator (right?) which gives if we let i work on our bra:
<N_i|N_i > = <N_i - 1||N_i - 1> = N_i^0.5
This seems strange! Because then the probabilitiy of finding N particles in state i is independent of N. Or where do I get i wrong?