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

Average Potential Energy of a hydrogen 1s electron

  1. May 17, 2010 #1
    I can't find any reference to this in my notes.

    The problem is to calculate the average potential energy of a hydrogen 1s electron. The operator is V=e2 /4piE0r
     
  2. jcsd
  3. May 18, 2010 #2
    you forgot a minus sign. Also, what's the commutator of H and V?
     
  4. May 18, 2010 #3
    good call on the minus sign. There's no mention of the commutator on the worksheet, is that necessary to know before doing the problem? I thought that the Hamiltonian operator for a hydrogen atom was -Hbar^2/2u-e^2/r. I'm really confused
     
  5. May 18, 2010 #4

    alxm

    User Avatar
    Science Advisor

    I'll give a hint: How do you calculate the expectation value of an operator? I suspect that's what they want you to do.
     
  6. May 18, 2010 #5
    alxm is right. I wanted you to use a method called the virial theorem in QM, but it might be too complicated.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Average Potential Energy of a hydrogen 1s electron
Loading...