Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/128242
Title: | Probing N=2 superconformal field theories with localization |
Author: | Fiol Núñez, Bartomeu Garolera, Blai Torrents Verdaguer, Genís |
Keywords: | Simetria (Física) Teoria de camps (Física) Symmetry (Physics) Field theory (Physics) |
Issue Date: | 3-Feb-2016 |
Publisher: | Springer Verlag |
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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP01(2016)168 |
It is part of: | Journal of High Energy Physics, 2016, vol. 2016, num. 168 |
URI: | http://hdl.handle.net/2445/128242 |
Related resource: | https://doi.org/10.1007/JHEP01(2016)168 |
ISSN: | 1126-6708 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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