A technique named for Pauli and Villars can aid in this process.
A technique named for Pauli and Villars can aid in this process. When using this process, one can set a shortdistance cutoff to get a picture of high-energy behavior, though that typically leads to one quantity acquiring an anomalous dimension. A mathematical construct named for this process encodes the running of the coupling constant, and applying that construct to the Kondo effect and phase transitions won Kenneth Wilson the Nobel Prize. This process is required when the integrand in Feynman diagrams with loops falls off insufficiently quickly for highmomentum virtual particles. Schwinger related this technique to zeta function regularization. Feynman derisively referred to it as "hocus-pocus." For 10 points, identify this technique used to get rid of infinities in quantum field theories.
A technique named for Pauli and Villars can aid in this process.
renormalization [accept word forms, prompt on regularization]