Found 3 result(s)

08.11.2017 (Wednesday)

RG Flows Across Dimensions and Holography

Regular Seminar Nikolay Bobev (KU Leuven)

at:
14:00 IC
room H503
abstract:

Superconformal field theories placed in nontrivial background fields for the metric and the continuous global symmetries exhibit a rich web of RG flows across dimensions. I will discuss several examples of such flows and emphasize some of their universal features. In addition, I will employ non-perturbative tools such as 't Hooft anomaly matching, a-, F-, and c-extremization, and holography to gain a quantitative understanding of some aspects of these theories. Finally, I will discuss the relevance of these results for a microscopic understanding of the entropy of supersymmetric black holes and strings in AdS.

11.03.2015 (Wednesday)

Holography for N=2(star) on S4

Triangular Seminar Nikolay Bobev (Leuven)

at:
16:30 QMW
room Peoples Palace PP2
abstract:

I will discuss the gravitational dual of a mass deformation of N=4 SYM, called N=2* SYM, on S^4. Using holographic techniques one can calculate the universal contribution to the corresponding free energy in the planar limit and at large 't Hooft coupling. The result matches the expression recently computed using supersymmetric localization in the field theory. This agreement constitutes a non-trivial precision test of holography in a non-conformal setting. I will also briefly discuss the extension of these results to mass deformations of N=4 SYM with N=1 supersymmetry.

11.11.2011 (Friday)

Holographic Uniformization

Regular Seminar Nikolay Bobev (Stony Brook)

at:
14:00 IC
room B539
abstract: