Title:
|
Probing N=2 superconformal field theories with localization
|
Author:
|
Fiol Núñez, Bartomeu; Garolera, Blai; Torrents, Genís
|
Other authors:
|
Universitat de Barcelona |
Abstract:
|
We 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. |
Subject(s):
|
-Simetria (Física) -Teoria de camps (Física) -Symmetry (Physics) -Field theory (Physics) |
Rights:
|
cc-by (c) Fiol Núñez, Bartomeu et al., 2016
http://creativecommons.org/licenses/by/3.0/es |
Document type:
|
Article Article - Published version |
Published by:
|
Springer Verlag
|
Share:
|
|