1
Q
What is the expectation value of q?
A
The mean < q >
2
Q
What is the uncertainty in q?
A
The standard deviation σ_q
3
Q
What can be said about the product of the uncertainties of the observables associated with two non-commuting operators?
A
It is greater than or equal to half the modulus of the expectation value of the commutator
4
Q
See page 13 for the product of the uncertainties of two non-commutating operators
A
Do it
PQM
flashcards
Decks in class (25)
# Cards
-
2. Failures of Classical Mechanics20
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3. Schrodinger Equations10
-
4. Wave Functions in 1D14
-
5. The Harmonic Oscillator30
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6. QM in 3D19
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7. Angular momentum18
-
8. Hydrogenic Atoms34
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9. Electron spin14
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10. Angular Momentum in Atoms17
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11. Multi-electron atoms7
-
12. Electron-electron Interaction17
-
13. Spectroscopy2
-
14. The Postulates23
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15. States and Superposition15
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16. Measurement and Time Evolution6
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17. Hermitian Operators and Commutators14
-
18. Simple Harmonic Oscillator (again)3
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19. Expectation Values2
-
20. Variance, standard deviation and HUP4
-
21. Time Dependence of Expectation Values10
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22. The Correspondance Principle Revisited2
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23. Angular Momentum Operators13
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24. Angular Momentum Eigenfunctions4
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(2) Electrons in Atoms and Molecules20
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(2) Free Electron Model of an Atom7
