Title: Exact open tachyon spectrum in AdS/CFT Speaker: Ryo Suzuki, Oxford Date: Thursday, June 12, 2014 Time: 2:00pm-3:00pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: In order to understand unstable string states in curved spacetime, we consider potentially tachyonic open string states in AdS_5xS^5 which should correspond to a determinant-like operator in N=4 super … Read more
Title: Cyclic homology and S^1-equivariant symplectic cohomology Speaker: Sheel Ganatra, Stanford Date: Tuesday, June 10, 2014 Time: 2:30pm-3:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: In this talk, we study two natural circle actions in Floer theory, one on symplectic cohomology and one on the Hochschild homology of the Fukaya category. We show that … Read more
Title: Maxwell Electrodynamics on 4 torus as a topologically ordered system Speaker: Ariel Zhitnitsky Date: Monday, June 9, 2014 Time: 4:00pm-5:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract:I discuss a novel contribution to the Casimir vacuum energy which can not be expressed in terms of conventional propagating degrees of freedom. Instead, it is formulated in … Read more
Title: OPE in statistical mechanics – what is it good for? Speaker: Alexander Zamolodchikov, Rutgers Date: Thursday, June 5, 2014 Time: 10:30am-12:00pm Place: Seminar Room 33, Simons Center [box, type=”download”]Watch the video.[/box]
Title: Kahler Geometry Speaker: Simon Donaldson Date: Friday, May 30, 2014 Time: 11:00am-12:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: The lectures will cover quite a lot of ground systematically, including the work on Kahler Einstein metrics in the positive case (Fano Varieties) and the algorithm’s mentioned in Burt Ovrut’s talk a few weeks back.
Title: From S-duality to Quantum Cohomology Speaker: Peter Koroteev, Perimeter Institute Date: Thursday, May 29, 2014 Time: 2:15pm-3:45pm Place: Lecture Hall 102, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: We compute quantum cohomology rings of target manifolds of a large family of 3d (2,2) sigma models using integrability. As a first step we use the Nekrasov-Shatashvili duality between the … Read more
Title: Casimir Effect: Diffraction and general boundary conditions Speaker: Dimitra Karabali Date: Thursday, May 29, 2014 Time: 1:00pm-2:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: Casimir effect refers to the emergence of macroscopic forces between neutral material bodies, such as conducting plates, in vacuum arising from the quantum fluctuations of fields. I will present a … Read more
Title: Category of Kuranishi structure germs and a forgetful functor from polyfold Fredholm sections Speaker: Dingyu Yang, Jussieu Institute, UPMC Date: Tuesday, May 27, 2014 Time: 2:30pm-3:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box]
Title: Stability of two-dimensional topological insulators Speaker: Andrea Cappelli Date: Tuesday, May 27, 2014 Time: 1:00pm-2:30pm Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: Topological insulators possess non-chiral edge excitations that can interact and decay. The criteria of stability in presence of time-reversal symmetry are reviewed and put in relation with the existence of discrete anomalies. … Read more
Title: Kahler Geometry Speaker: Simon Donaldson Date: Tuesday, May 27, 2014 Time: 9:45am-11:15am Place: Seminar Room 313, Simons Center [box, type=”download”]Watch the video.[/box] Abstract: The lectures will cover quite a lot of ground systematically, including the work on Kahler Einstein metrics in the positive case (Fano Varieties) and the algorithm’s mentioned in Burt Ovrut’s talk a few weeks … Read more
