As mentioned on the Wikipedia page en.wikipedia.org/w/index.php?title=Stationary_Action_Principle&oldid=1020413171, "principle of least action" is not accurate since it could not necessarily be a minima, we could just be in a saddle-point.
TODO what it means to solve an Ising model in general?
stanford.edu/~jeffjar/statmech/lec4.html gives some good notions:
- is the expectation value of the value. It is therefore a number between -1.0 an and 1.0, -1.0 means everything is always down, 0.0 means half up half down, and 1.0 means all up
- : correlation between neighboring states. TODO.
Variation of saturation magnetisation with temperature for Nickel
. Source. This graph shows what happens when you approach the Curie temperature from below. Density; Density Matrix; Pair Distribution by 
Ciro Santilli 35 Updated 2025-01-06 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-06 +Created 1970-01-01 Unlisted articles are being shown, click here to show only listed articles.