One line between (+-). Two lines between (++). Zero line between (--). [tex]\gamma[/tex] number of nearest neighbours. Why we have relation(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\gamma N_+=2N_{++}+N_{+-}[/tex]

Why we get this? Some explanation. This is from Kerson Huang.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Ising model

**Physics Forums | Science Articles, Homework Help, Discussion**