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

Conservation of Energy and Mass in QM

  1. Mar 18, 2010 #1
    Please tell me how conservation of energy and mass apply in QM. I want to confirm something I read somewhere about QM not conserving energy.
  2. jcsd
  3. Mar 18, 2010 #2


    User Avatar

    Staff: Mentor

    How about you tell us what you read, and then we can confirm whether that specific statement is valid?
  4. Mar 18, 2010 #3


    Staff: Mentor

    As long as the Hamiltonian is symmetric under time translation then energy is conserved.
  5. Mar 18, 2010 #4
    Before the experts step in and cry out "not again" :) here is a link to a thread two days ago...

    What a shame that no-one refered to my reference in Baez's site where it talks about non-conservation of energy in virtual particles.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook