In theoretical physics, a minimal model is a two-dimensional conformal field theory whose spectrum is built from finitely many irreducible representations of the Virasoro algebra. Minimal models are parameterized by two integers p,q. A minimal model is unitary if .
These conformal field theories have a finite set of conformal families which close under fusion. However, generally these will not be unitary. Unitarity imposes the further restriction that q and p are related by q=m and p=m+1.
for m = 2, 3, 4, .... and h is one of the values
for r = 1, 2, 3, ..., m−1 and s= 1, 2, 3, ..., r.
The first few minimal models correspond to central charges and dimensions: