hokhani's latest activity
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Hhokhani replied to the thread Graduate Measurement and expectation value.Ok, and I told since ##[H,\hat{A}=\hat{S_z}]=0##, in the Stern-Gerlach experiment after the time ##t_1## the system is always in the...
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Hhokhani replied to the thread Graduate Measurement and expectation value.No, I approved your comment about S-G experiment by taking ##\hat{A}=\hat{S_z}## and ##A## in the Hamiltonian is not operator but the...
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Hhokhani replied to the thread Graduate Measurement and expectation value.You are right, I edited the post #15.
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Hhokhani reacted to anuttarasammyak's post in the thread Graduate Measurement and expectation value with
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S-G Hamiltonian is proportional to Sz. [H,Sz]=0. Sz is conserved,I.e.,we get the same result in measurement performed in any future... -
Hhokhani replied to the thread Graduate Measurement and expectation value.Right, so for example in the S-G experiment, before the first measurement we have the Hamiltonian ##\frac{\hat{P}^2}{2m}##, at first...
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Hhokhani replied to the thread Graduate Measurement and expectation value.Thank you and Matterwave. We are at a good point to review my problem again. We would like to measure the quantity ##\hat{A}## and...
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Hhokhani replied to the thread Undergrad Radiation in classical and quantum mechanics.And you reconciled very well the reason in the two models. Thanks.
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Hhokhani reacted to Dale's post in the thread Undergrad Radiation in classical and quantum mechanics with Like.
In the classical model there is radiation. And in the quantum model there is also radiation. So there is a classical reason and a...
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Hhokhani replied to the thread Undergrad Radiation in classical and quantum mechanics.Right, but by "classical reason" I meant how to explain the reality in the classical model.
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Hhokhani reacted to Dale's post in the thread Undergrad Radiation in classical and quantum mechanics with Like.
I already answered this: a changing dipole moment. Whenever charge acceleration produces a changing dipole moment then it generates...
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Hhokhani replied to the thread Graduate Measurement and expectation value.You mean that if the second measurement is done long after the first one, the second result may be different. But I haven't seen...
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Hhokhani reacted to Matterwave's post in the thread Graduate Measurement and expectation value with Like.
2 points. 1. You have to consider my answer in light of my longer explanation above. 2. That's not what the Ehrenfest theorem says...
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Hhokhani replied to the thread Graduate Measurement and expectation value.So, we cannot consider the classical measurements like the expectation values in QM because we may have classical measurements which...
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Hhokhani replied to the thread Undergrad Radiation in classical and quantum mechanics.Ok, but do you mean that charge acceleration doesn't generate radiation? Then, what is the classical reason of radiation?
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Hhokhani replied to the thread Undergrad Radiation in classical and quantum mechanics.From classical view, even in a stationary state of an atom electrons have acceleration and they must radiate.