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

Spin Quantum # in Triplet state

  1. Jan 9, 2013 #1

    For two spin 1/2 identical particles, the triplet state is:

    1/√2 (|UP,DOWN> + |DOWN,UP>)

    Q1: in the up,up or down,down, are the two electrons considered to have the same spin quantum number?

    Q2: If so, then only the middle one (see above) is where they have different spin quantum numbers, right?

    Q3: In the Singlet state, they have different spin quantum numbers, right?
  2. jcsd
  3. Jan 9, 2013 #2

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    The are two spin Q numbers. They have the same s^2, but different s_z.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook