Conclusions

We conclude with a summary of the results, before providing suggestions for future research directions related to the themes encountered throughout this thesis. This thesis has been dedicated to the study of defects in conformal field theories, exploring both the weak- and strong-coupling regimes. The two canonical configurations of correlation functions have been considered: on one hand those involving bulk operators in the presence of a defect, and on the other one those involving excitations of the defect. Chapters 3 and 4 focus on the case of the \({\mathcal {N}}=4\) SYM model, while Chap.  5 departs from supersymmetry to study magnetic line defects in fermionic models that might be observable experimentally. We now provide a concise summary of the key findings from these chapters.