Quantum Mechanics postulate

PAPquestions

Hi I am new here and also new to QM.

I have encountered a problem about postulate 2 which is the superposition principle. Basically I understand the concept. However, when it comes to real question, I get stuck and can't proceed. Could anyone enlightens me how to get started with the problem below?

Question:
A psi(x) = [psi(x)]^2

Is A a linear operator? Is A a Hermitian?

PAPquestions

Heh, I found the way to solve it already!

arkajad

BTW: You should start using the notation [tex](A\psi )(x)[/tex] instead of [tex]A\,\psi(x)[/tex]. It will help you to understand better the mathematical operations involved.

[tex](A\psi )(x)[/tex] reads: the value of the function [tex]A\psi[/tex] at the point x.

Operators act on functions (as objects) and not on values of these functions (numbers).

Similar Threads for: Quantum Mechanics postulate
Thread	Forum	Replies
Do I need Classical mechanics and waves in order to understand Quantum mechanics????	Academic Guidance	22
hydrogen atom obeying classical mechanics rather than quantum mechanics	Introductory Physics Homework	6
Quantum Mechanics / measurement postulate	Advanced Physics Homework	15
Experimental Quantum Transition Physics: A Necessary Heretical Postulate	General Physics	0

arkajad	BTW: You should start using the notation [tex](A\psi )(x)[/tex] instead of [tex]A\,\psi(x)[/tex]. It will help you to understand better the mathematical operations involved. [tex](A\psi )(x)[/tex] reads: the value of the function [tex]A\psi[/tex] at the point x. Operators act on functions (as objects) and not on values of these functions (numbers).