Possible measurement, eigenvalues of eigenfunctions and probabilities

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SUMMARY

The discussion centers on calculating the eigenvalues and probabilities associated with the angular wavefunction given by ##\propto (\sqrt{2} cos(\theta) + sin (\theta) e^{-i\phi} - sin (\theta) e^{i\phi})##. The eigenvalue for the operator ##\hat{L^2}## is definitively determined to be ##2\hbar^2##. To find the probability of this outcome, participants are encouraged to provide explicit expressions for the operators involved and to detail the general formula for computing probabilities in quantum mechanics.

PREREQUISITES
  • Understanding of quantum mechanics concepts, particularly angular momentum operators.
  • Familiarity with wavefunctions and their normalization.
  • Knowledge of eigenvalues and eigenfunctions in quantum systems.
  • Ability to compute probabilities from quantum states using relevant formulas.
NEXT STEPS
  • Research the explicit forms of the angular momentum operators ##\hat{L^2}## and ##\hat{L_z}##.
  • Study the general formula for calculating probabilities in quantum mechanics.
  • Explore normalization techniques for wavefunctions in quantum mechanics.
  • Investigate the implications of eigenvalues in quantum measurements.
USEFUL FOR

Students and professionals in quantum mechanics, particularly those focusing on angular momentum, wavefunctions, and measurement theory in physics.

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Homework Statement



Suppose the angular wavefunction is ##\propto (\sqrt{2} cos(\theta) + sin (\theta) e^{-i\phi} - sin (\theta) e^{i\phi})##, find possible results of measurement of:

(a) ##\hat {L^2}##
(b)##\hat {L_z}##

and their respective probabilities.


Homework Equations





The Attempt at a Solution



Part (a)
Eigenvalue is ##2\hbar^2##. Thus that is the possible result. How do I find the probability of that outcome?
 
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Ahem. I think you could put more than <nothing> in your "relevant equations" section. E.g., what are explicit expressions for your operators in this case? You could also write the general formula for computing a probability for a particular observable and a given state. You could also show some detail of how you arrived at the eigenvalue for ##\hat L^2##.

It also wouldn't hurt to state the source of your question.

Bear in mind that if you're unwilling to put more effort into your post, then why should others put effort into helping you?
 

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