1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question about spin 1/2

  1. Dec 1, 2012 #1
    What's a pin 1/2? How can one spin 2 whole revolution to get to the same side? I don't get it.
    How about spin 0,1,or 2. What do those mean?
     
  2. jcsd
  3. Dec 1, 2012 #2

    K^2

    User Avatar
    Science Advisor

    If you just need a very simple visualization, picture a Mobius strip. You need to go two revolutions around it to end up where you started from. It works like that on many levels.

    Notice that you can glue the strip with half-twist, full twist, twist-and-a-half, etc. Just like with spins, a strip with integer twist will get you back to the same exact spot after a 360° rotation. Half-integer will require a 720° turn.

    But if you want to understand where all of this comes from and how it works, you need Quantum Mechanics, and I'm guessing, you don't have much of a background in that.
     
  4. Dec 2, 2012 #3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Question about spin 1/2
  1. Spin 1/2 particles (Replies: 4)

  2. 1 question about light (Replies: 22)

Loading...