Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Schrodinger equation and second derivatives

  1. Oct 28, 2007 #1
    1. The problem statement, all variables and given/known data
    Is this logic correct:

    begin logic;

    1) The Schrodinger equation must hold for all x:

    2) The Schrodinger equation contains a second derivative

    3) A derivative is only defined on a continuous function.

    1, 2, and 3 imply that the first derivative of any wavefunction must be continuous.

    end logic;

    My book says that the first derivative does not need to be continuous for delta function potentials, so something must be wrong with my logic...

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted