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

Solving for constants given boundary conditions

  1. Sep 21, 2010 #1
    1. The problem statement, all variables and given/known data

    [PLAIN]http://img843.imageshack.us/img843/3515/11193469.png [Broken]

    2. Relevant equations

    3. The attempt at a solution

    [PLAIN]http://img801.imageshack.us/img801/4829/scan0001i.jpg [Broken]

    An upload of my attempt to solve the problem. Not sure to interpret the results.
    A = B = 0
    C = -C*
    C = Ce-2ikL
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 21, 2010 #2
    That's not quite right. There can be other values of k for which sin(kL)=0. This means that B is not necessarily zero. Hence solve the equation sin(kL)=0 for k.
    After this to get the B you have to normalize the wavefunction.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook