Problem 1.7 – Griffith’s Intro to QM

Problem 1.7

Calculate $d \langle p \rangle / dt$ . Answer:

$\dfrac{d \langle p \rangle}{dt}=\langle - \dfrac{\partial V}{\partial x} \rangle$ .

This is an instance of Ehrenfest’s theorem, which asserts that expectation values obey the classical laws.

Solution:

Problem 1.7

Problem 1.7 Video Solution

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