Phy5645/HO problem1: Difference between revisions
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Calculate the expectation value of x in eigenstate. | Calculate the expectation value of x in eigenstate. | ||
Solution: | Solution: | ||
We can compute the expectation value of x simply. | We can compute the expectation value of x simply. | ||
<math>\langle\Psi_n|x|\Psi_n\rangle</math> | <math>\langle\Psi_n|x|\Psi_n\rangle</math> | ||
We should have seen that coming. Since each term in the operator changes the eigenstate, the dot product with the original (orthogonal) state must give zero | We should have seen that coming. Since each term in the operator changes the eigenstate, the dot product with the original (orthogonal) state must give zero | ||
Revision as of 01:05, 6 December 2009
Calculate the expectation value of x in eigenstate.
Solution:
We can compute the expectation value of x simply.
We should have seen that coming. Since each term in the operator changes the eigenstate, the dot product with the original (orthogonal) state must give zero