Departamento de Física

Facultad de Ciencia
Universidad de Santiago de Chile

Seminario - Jueves 28 de Marzo - 13:00 - Sander Mooij - École Polytechnique Fédérale de Lausanne

Fecha: 
03/28/2019 - 13:00
Estimados/as integrantes del Departamento de Física

 
El Jueves 28 de Marzo a las 13:00 horasDr. Sander Mooij, École Polytechnique Fédérale de Lausanne, dará una charla en la sala de seminarios del tercer piso del Departamento de Física

 
Título



Scale Invariance: Classical or Quantum, Hidden or Explicit



Abstract

 
At the classical level, knowledge of a theory's Lagrangian is enough to establish whether it is scale invariant or not. At the quantum level, one also needs a prescription for the regularisation and renormalisation of that theory. The most famous regularisation schemes, such as dimensional regularisation (DR), break scale invariance. We show an alternative, scale independent, regularisation scheme. We also show how a theory can have ``hidden" scale invariance: we propose a scale dependent classical theory which after dimensional regularisation (also scale dependent) generates a scale independent quantum theory.

Lebron XIV 14 Glow

Carrera: 
Doctorado en Ciencia con Mención en Física