20. Variance, standard deviation and HUP Flashcards
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
