# Ising model as quantum model?

I've read in a few papers things that use the fact that the $2D$ Ising model can be interpreted as a $1+1$ quantum spin model. I haven't been able to find this description and would like to read about it. Could anyone recommend a book with this description?

Your question, "Ising model as quantum model?", really opens a Pandora's box. Anyway, yes, in general, an $$N\text{-dimensional}$$ quantum (Ising) model can be mapped to an $$N+1$$ classical (Ising) model.