Department of Physics and Astronomy
phone: +4618 471 3291
Lecture notes for various courses I have taught can be found here.
My main research interests are in string theory and quantum field theory. Over the last several years I have been studying the AdS/CFT duality beyond the supergravity limit. More specifically, this research is centered on using integrability and localization to find exact results for supersymmetric theories.
Supersymmetric Yang-Mills, Spherical Branes, and Precision Holography2019-10-22
by: Bobev, Nikolay (Leuven U.) et al.
Using supersymmetric localization we compute the free energy and BPS Wilson loop vacuum expectation values for planar maximally supersymmetric Yang-Mills theory on $S^d$ in the strong coupling limit for $2\leq d<6$. The same calculation can also be performed in supergravity using the recently found spherical brane solutions. We find excellent agreement between the two sets of results. Th...
Notes on anomalies, elliptic curves and the BS-D conjecture2019-08-13
by: Lü, Yongchao (Uppsala U.) et al.
We consider anomaly cancellation for $SU(N)\times SU(2)\times U(1)$ gauge theories where the left-handed chiral multiplets are in higher $SU(2)$ representations. In particular, if the left-handed quarks and leptons transform under the triplet representation of $SU(2)$ and if the $U(1)$ gauge group is compact then up to an overall scaling there is only one possible nontriv...
Gauge theories on spheres with 16 supercharges and non-constant couplings2018-11-29
J.Phys. A52 (2019) 235401
by: Minahan, Joseph A. (Uppsala U.) et al.
We construct a class of theories with 16 supersymmetries on spheres of dimension nine and less. The gauge coupling and mass terms for the scalar fields depend on the polar angle away from the north pole. Assuming finite coupling on the north pole, this leads to zero coupling at the south pole for d > 4 and infinite ...
The thermodynamic Bethe ansatz in a gauge theory2018-04-27
J.Phys. A50 (2016) 011001
by: Minahan, Joseph A. (Uppsala U.)