2
votes
4answers
326 views

Is there a non-perturbative remormalization? If so, how does it work?

Is there a method to renormalize a theory without using perturbative expansions for the divergences? For example, is there a method to get masses and other renormalized quantities without using ...
12
votes
1answer
420 views

Instantons, anomalies, and 1-loop effects

A symmetry is anomalous when the path-integral measure does not respect it. One way this manifests itself is in the inability to regularize certain diagrams containing fermion loops in a way ...
3
votes
0answers
259 views

Is there a Non-perturbative renormalization algorithm? [duplicate]

Possible Duplicate: is there non-perturbative RENORMALIZATION ?? if so how it works? Is there a non-perturbative renormalization algorithm ???, for example to avoid the divergent integrals ...