Tru Physics

Problem 2.8 – Griffith’s Intro to QM

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Problem 2.8

A particle of mass m in the infinite square well (of width starts out
in the state

\Psi (x,0) = \begin{cases} A, & 0\leq x\leq a/2 \\ 0, & a/2\leq x\leq a \\ \end{cases}

for some constant A, so it is (at t=0) equally likely to be found at any point in the left half of the well. What is the probability that a measurement of the energy (at some later time t) would yield the value \pi^2 \hbar^2 / 2ma^2?

Solution:

Problem 2.8 - Griffith's Intro to QM

Problem 2.8 Solution (Download)

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