6533b823fe1ef96bd127e360

RESEARCH PRODUCT

Geometry of the theory space in the exact renormalization group formalism

Hidenori SonodaCarlo Pagani

subject

RenormalizationPhysicsFormalism (philosophy of mathematics)010308 nuclear & particles physicsQuantum mechanics0103 physical sciencesRenormalization group010306 general physics01 natural sciencesMathematical physics

description

We consider the theory space as a manifold whose coordinates are given by the couplings appearing in the Wilson action. We discuss how to introduce connections on this theory space. A particularly intriguing connection can be defined directly from the solution of the exact renormalization group (ERG) equation. We advocate a geometric viewpoint that lets us define straightforwardly physically relevant quantities invariant under the changes of a renormalization scheme.

10.1103/physrevd.97.025015https://hdl.handle.net/20.500.14094/90004765