This article relies largely or entirely on a
single source. (March 2024) |
A Gaussian fixed point is a fixed point of the renormalization group flow which is noninteracting in the sense that it is described by a free field theory. [1] The word Gaussian comes from the fact that the probability distribution is Gaussian at the Gaussian fixed point. This means that Gaussian fixed points are exactly solvable ( trivially solvable in fact). Slight deviations from the Gaussian fixed point can be described by perturbation theory.
This article relies largely or entirely on a
single source. (March 2024) |
A Gaussian fixed point is a fixed point of the renormalization group flow which is noninteracting in the sense that it is described by a free field theory. [1] The word Gaussian comes from the fact that the probability distribution is Gaussian at the Gaussian fixed point. This means that Gaussian fixed points are exactly solvable ( trivially solvable in fact). Slight deviations from the Gaussian fixed point can be described by perturbation theory.