Recent content by EnershyMethod

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    Expectation Value in Inf. Box in an Eigenstate

    BUMP, We need it for tomorrow.
  2. E

    How Do You Calculate the Expectation Value for a Particle in an Infinite Box?

    BUMP, We need it for tomorrow.
  3. E

    Expectation Value in Inf. Box in an Eigenstate

    Homework Statement Obtain an expression for the expectation value <Pxn>n N=1,2... of a particle in an infinite box ( V=\infty for x<0 and x>L ; V=0 for 0<X<L) which is in an eigenstate of the energy. Homework Equations Pn =+- \sqrt{2*m*En } = +- (n*pi*Hbar) / L The Attempt at a...
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    How Do You Calculate the Expectation Value for a Particle in an Infinite Box?

    Have you figured it out yet? I don't understand 'soul's last comment/step. I understand up to normalizing the wave function. I don't know how to derive px and xp. Help!