Fiol Núñez, BartomeuGarolera, BlaiTorrents Verdaguer, Genís2019-02-142019-02-142016-02-031126-6708https://hdl.handle.net/2445/128242We use supersymmetric localization to study probes of four dimensional Lagrangian N=2 superconformal field theories. We first derive a unique equation for the eigenvalue density of these theories. We observe that these theories have a Wigner eigenvalue density precisely when they satisfy a necessary condition for having a holographic dual with a sensible higher-derivative expansion. We then compute in the saddle-point approximation the vacuum expectation value of 1/2-BPS circular Wilson loops, and the two-point functions of these Wilson loops with the Lagrangian density and with the stress-energy tensor. This last computation also provides the corresponding Bremsstrahlung functions and entanglement entropies. As expected, whenever a finite fraction of the matter is in the fundamental representation, the results are drastically different from those of N=4 supersymmetric Yang-Mills theory.18 p.application/pdfengcc-by (c) Fiol Núñez, Bartomeu et al., 2016http://creativecommons.org/licenses/by/3.0/esSimetria (Física)Teoria de camps (Física)Symmetry (Physics)Field theory (Physics)info:eu-repo/semantics/article6569962019-02-14info:eu-repo/semantics/openAccess