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# practicequiz - i Q2 Localized momentum(5 points At time t =...

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Cornell University Practice Quiz Physics 316 You may not use books or notes. Name: Throughout this quiz, | ψ i is the state vector for a particle in one dimension (1-D). The position and mo- mentum basis states are represented as | x i and | k i respectively. Q1. Units (5 points) (a) What are the units (i.e. length, mass, time, etc.) of h x | ψ i ? (justify your answer) (b) What are the units of h k | ψ i ? (justify your answer) (c) What are the units of h k | x i ? Hint: recall that h k | ψ i = R dx h k | x ih x | ψ

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Unformatted text preview: i . Q2. Localized momentum (5 points) At time t = 0, an electrons momentum p is known to be localized between p = 0 and p = hK , so that at t = 0 we have h k | i = A if 0 &amp;lt; k &amp;lt; K, otherwise. (1) (a) Express the constant A in terms of K . (b) What is the probability distribution for the position of this electron at t = 0? (extra page if you need more space) (extra page if you need more space)...
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practicequiz - i Q2 Localized momentum(5 points At time t =...

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