Hamiltonian Problem (Quantum Mechanics)

3 replies · 2K views · last reply
Just_some_guy
Messages
16
Reaction score
0
Hi everyoneI have been give a matrix operator and asked to find the eigen values, I have done so and then I was given a state |ψ> of some particle.

The part I'm struggling with is it then asks for <H>, the expectation value of the matrix operator. It's a 3x3 matrix also.

I've tried using the generalised formula for expectation value but I've only ever used it for simple probability densities

I've looked all over the internet to find an example even a little close and had no joy whatsoever :(

Any ideas or guidance would be much appreciated :)Regards
 
Handwritten quantum mechanics notation: 1/√2 times a column vector with entries 2i, i, -i equals |ψ⟩ equals ξ, and below it 1/√2 times the row (-2i, -i, i) equals ξ†, with a crossed-out scribble beneath.
Above is the only thing I'm unsure about! Does the hermitian conjugate of the include the constant or not? Other than that I think I've solved the problem?
Thanks