Used for questions related to conformal field theory, which is a quantum field theory that is invariant under conformal transformations.

A conformal field theory (CFT), which is a quantum field theory that is invariant under conformal transformations. While it is possible for a quantum field theory to be scale invariant but not conformally-invariant, examples are rare. For this reason, the terms are often used interchangeably in the context of quantum field theory, even though the scale symmetry group is smaller.

There are 2 versions of 2D CFT. For Euclidean CFT, it can be applied to statistical-mechanics. For Lorentzian CFT, it can be applied to quantum-field-theory.

For higher-dimensional CFT, it can be applied to string-theory.