Line Defect Correlators in Fermionic CFT

The study of supersymmetric theories in Chaps.  3 and 4 has provided valuable insights into line defect CFTs. We now leave this realm to study models which have closer connections to the real world. We consider in particular the Yukawa universality classes, which can be expressed as the action ( 2.81 ), involving N scalars and \(N_f\) fermions. These models are important quantum field theories, as they possess interesting characteristics reminiscent of the Standard Model, such as asymptotic freedom and dynamical symmetry breaking. Moreover, they exhibit emergent supersymmetry, which has the potential of being observable experimentally [1–6].