If we wish to have a lattice model which approximates a continuumquantum field theory in the limit as the lattice spacing goes to zero, then this corresponds to finding a second order phase transition of the model. This is the scaling limit of the model. In physics, a lattice model is a physical model that is not defined on a continuum, but on a lattice, which is a graph or an n-complex approximating spacetime or space. ... Usually a continuum refers to a whole, no part of which can be distinguished from neighboring parts except by arbitrary division. ... Quantum field theory (QFT) is the application of quantum mechanics to fields. ... In physics, a phase transition is the transformation of a thermodynamic system from one phase to another. ...
In physics, the scalinglimit is a term applied to the behaviour of a lattice model in the limit of the lattice spacing going to zero.
If we wish to have a lattice model which approximates a continuum quantum field theory in the limit as the lattice spacing goes to zero, then this corresponds to finding a second order phase transition of the model.
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