Recent content by tungs10

So it is just <A> multiplied by the identity matrix. Thanks, that makes sense. I am glad I found this forum!

Hi, I am trying to teach myself some quantum mechanics and here is something I am stuck on. Various derivations of Heisenberg uncertainty start out with two Hermitian operators, usually called A and B to represent position and momentum. Then they define another two operators ∆A and ∆B as...