e/Square-lattice Ising model

Information
has gloss	eng: In statistical mechanics, the two-dimensional square-lattice Ising model was solved by for the special case that the external field H = 0. A solution for the general case for H \neq 0 has yet to be found. Solution The critical temperature T_c is :T_c = \frac2}\ln(1+\sqrt2})} \approx 2.27
lexicalization	eng: Square lattice Ising model
lexicalization	eng: Square-lattice Ising model
instance of	c/Exactly solvable models

Media
media:img	Duallattice.png
media:img	Duallattices.png