Recent content by maalpu

Thanks Chopin - I had not thought about or seen that emphasis on the integration variables. The rule then seems be that bra-ket has common integration variables, and ket-bra different ones, so <f|g><a|b> becomes f*(x) g(x) a*(y) b(y) whichever way they are grouped. For the operator, here...

Is the commutator [A+ A] = 1 in the givens correct ? I get [A+ A] = -1 based on the definitions that follow. And therefore [A A+] = 1, consistent with my getting answers a and a+1 for equations 3 and 4, regardless of whether I apply both operators in turn to the ket, or apply the first to...

Can anyone point me to how to interpret Dirac notation expressions as wave functions and integrals beyond the basics of     <α| = a*(q)     |β> = b(q)     <α|β> = ∫ a* b dq For example in the abstract Dirac notation the expression     |ɣ> (<α|β>) can be evaluated as     (|ɣ><α|) |β>  ...