Recent content by mlukowski

I agree, that it shouldn't be called projection postulate. We just prepare, not project. Pay attention on the interesting feature of this theorem: If measure E_{A,B,C} is dim=1 then we know everything about the state |\psi\rangle, but if it is more than dim=2 the equation has free parameters. If...

1. As You probably know it is impossible to solve many-body (more than 4) with interactions. That's why HF procedure leads to one-body problem i.e. many particles (but without interactions between them) embeded into ,,avarage" potential. You can then treat particle as if it has no neighbour. HF...

It is iteration method, see in: P. Ring, P. Schuck: The nuclear Many-Body Problem, Springer Verlag, New York 1980. Really good book!

OK dextercioby, I know, but look at this: If we simultaneously measure commuting observables A, B and C, and the outcome connected with A is between a_1 and a_2, connected with B is between b_1 and b_2, connected with C is between c_1 and c_2, then after the measurement statevector is given...

not this! I didn't mean THIS good-known postulate. I'm working with quantum theory of measurement, and I was asking about Dirac's projection postulate, which is one of Axioms in QM! THX anyway...

There is many projection (or measurement) postulates in quantum mechanics axioms: von Neumann measurement, Luders postulate... But does anybody know sth. about DIRAC POSTULATE? Thx