2023•Theoretical and mathematical physicsOpen access
Conformal Symmetry
L. Bonora
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Abstract
The trace or conformal anomalies are the second important family of anomalies. They affect the trace of the energy-momentum tensor of a theory and represent the violation of a classical property: the on shell vanishing of the trace of the energy-momentum tensor when the (classical) theory is conformal invariant. This chapter is devoted to an introduction to conformal symmetry and conformal field theories.