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Seminaria

29 Maja 11:15

Michał Spaliński
Holografia i dynamika plazmy teorii Yanga-Millsa

Streszczenie: Fizyka plazmy kwarkowo-gluonowej od szeregu lat jest ważną inspiracją dla prób zrozumienia dynamiki silnie sprzężonej plazmy teorii Yanga-Millsa za pomocą dualności AdS/CFT. Przedstawię niektóre wyniki w tej dziedzinie uzyskane w ostatnich latach.

Miejsce: Hoża 69, pawilon NCBJ, sala 22

May 18th 11:15

Piotr Sułkowski
ON KNOTS, STRINGS AND QUANTUM FIELDS,
Part 1: Chern-Simons theory and homological knot invariants

Abstract: Knot theory is a fascinating field of mathematics, with applications in physics ranging from biophysics to statistical physics, quantum information theory and string theory. It gained an enormous boost in the 1980’s after a discovery of so-called Jones polynomial, and its physical interpretation in terms of a topological quantum field theory with the action functional consisting purely of Chern-Simons term. The last decade has witnessed another series of fascinating developments in this area, in particular (mathematical) discovery of homological knot invariants, and their (physical) realization in terms of supersymmetric BPS states arising in string theories engineered on appropriate Calabi-Yau manifolds. In this talk we will review an approach to knot theory based on Chern-Simons theory, and discuss recent progress in relating its refinement to string theory and homological knot invariants.

Where: Faculty of Physics, University of Warsaw, “Gravity seminar”, ul. Hoża 69, SST (“Sala Seminaryjna Teoretyczna”)
Note: This is the first (albeit self-contained) of the two talks devoted to knots, strings and quantum fields. The second talk will be presented as the “Exact Results in Quantum Theory and Gravity” seminar, also on May 18th.

May 18th 14:15

Piotr Sułkowski
ON KNOTS, STRINGS AND QUANTUM FIELDS
Part 2: Volume conjecture and emergent geometry

Abstract: Volume conjecture relates knot invariants to hyperbolic geometry and the volume of knot complements. In this talk we will present physical formulation of the volume conjecture in terms of Chern-Simons theory, its relations to string theory, and phenomena such as emergent and noncommutative geometry arising in this context, which are currently actively studied.

Where: Faculty of Physics, University of Warsaw, “Exact Results in Quantum Theory and Gravity”, ul. Hoża 69, SDT (“Sala Duża Teoretyczna”)
Note: This is the second (albeit self-contained) of the two talks devoted to knots, strings and quantum fields. The first talk will be presented as the “Gravity seminar”, also on May 18th.