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hi. How to obtain the expected value of x in the momentum space ?
I only have the result. But I don't have the perfect solution to tell me how to achieve that. I'm looking for a solution.Looks like you have answered your own question.
Whatever textbook you are learning QM from ought to have a derivation. If not, you should be able to find one online.I only have the result. But I don't have the perfect solution to tell me how to achieve that. I'm looking for a solution.
In my textbook only the result has been written, and not the complete solution.Whatever textbook you are learning QM from ought to have a derivation. If not, you should be able to find one online.
There's one here, for example.In my textbook only the result has been written, and not the complete solution.
Yet, yes, you are right. I search for a complete solution online.
thank you very much for your search for me.There's one here, for example.
How to get the position operator in the momentum representation from knowing the momentum operator in the position representation?
I know that $$\tag{1}\hat{p}~=~-i\hbar \frac{\partial}{\partial x}~.$$ How can I get $$\tag{2}\hat{x}~=~i\hbar \frac{\partial}{\partial p}~?$$ I think this simple and I'm just over thinking it,...physics.stackexchange.com