Latest Publication

Recently, a physical derivation of the Alday-Gaiotto-Tachikawa correspondence has been put forward. A crucial role is played by the complex Chern-Simons theory arising in the 3d-3d correspondence, whose boundary modes lead to Toda theory on a Riemann surface. We explore several features of this derivation and subsequently argue that it can be extended to a generalization of the AGT correspondence. The latter involves codimension two defects in six dimensions that wrap the Riemann surface. We use a purely geometrical description of these defects and find that the generalized AGT setup can be modeled in a pole region using generalized conifolds. Furthermore, we argue that the ordinary conifold clarifies several features of the derivation of the original AGT correspondence.
Under review, 2017.

All Publications

Generalized Toda Theory from Six Dimensions and the Conifold

Details PDF arXiv inSpire

Linear response of entanglement entropy from holography

Details PDF arXiv inSpire JHEP

Teaching

During my undergrad, I TA’d for several linear algebra and calculus courses. I also set up a preparatory statistics course for the Amsterdam University College.

After TA-ing statistical physics in the first year of my PhD, I helped set up a master’s course on mathematical methods in theoretical physics. To supplement the course book Topology and Geometry in Physics by Nakahara, Manus Visser and I composed a large number of exercises with typed solutions. The exercises are available upon requests.

Contact

  • g.w.j.oling@uva.nl
  • Room C4.261c, University of Amsterdam, Science Park 904, Amsterdam, The Netherlands