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

Origin of number of bounds in ising model

  1. Jun 24, 2015 #1
    what is the origin of the number of bound (N z /2 ) in the calculating of average in ensemble in Mean Field for the Ising model?

    yKjt6zQ.jpg
     
  2. jcsd
  3. Jun 25, 2015 #2

    DrDu

    User Avatar
    Science Advisor

    Each atom has z neigbours and hence z bonds to its neighbours. But each bond is shared by two atoms, so you have Nz/2 bonds in total.
     
  4. Jun 25, 2015 #3
    Thanks, I want to show that potts model hamiltonian is equal to this Jāˆ‘si.sj that siis
    {(1,0) , (-1/2 , āˆš3/2) , (-1/2, āˆš3/2)} . how should I do it? what is the first step?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook