Past Events
[Seminar] Resurgent Properties of Minimal Strings and Painlevé Equations (Mr. Roberto Vega, Instituto Superior Tecnico, University of Lisboa)
2021-02-23Title: "Resurgent Properties of Minimal Strings and Painlevé Equations"
Abstract: In this this talk we will introduce the concept of resurgence and how can it be applied to construct global, nonperturbative solutions. As complete examples, we will mention the cases of the Painlevé I and II, while we will end up by focusing on the current state of the Inhomogeneous PII and a q-deformed PII. All these equations (with the exception of the Inhomogeneous PII) appear in the context of Minimal Strings and represent interesting low-dimensional toy models of Quantum Gravity.
Seminar: Topological recursion for tensor models (Prof. Valentin Bonzom (LIPN - Combinatorics, Algorithms and Interactions - Paris University 13)
2021-02-20Title: Topological recursion for tensor models
SYK Seminar, Part III: Effective Action (Rotation Project)
2021-02-18As part of my rotation project I will give a series of introductory lectures on the SYK model. In Part III, I show how to derive the effective action for the master fields G and Σ directly from the partition function.
Seminar: Unitary matrix models (Mr. Neetu, IISER, Bhopal, India)
2021-02-16Title: Unitary matrix models
SYK Seminar, Part II: Melons (Rotation Project)
2021-02-12As part of my rotation project I will give a series of introductory lectures on the SYK model. In Part II, I will discuss the 2-point correlation function and how the large N diagrammatics reduce to iterated melon diagrams.
Seminar: Triple scaling of a multimatrix model U(N)^2 x O(D), continued (Prof. Reiko Toriumi, OIST)
2021-02-12Seminar: Triple scaling of a multimatrix model U(N)^2 x O(D), continued.
Seminar: Kinematic algebra (Dr. Tianheng Wang, Humboldt University Berlin, Germany)
2021-02-09Title: Kinematic algebra
[Seminar] Matrix Models and Topological Recursion II (Dr. Kento Osuga, University of Sheffield, UK)
2021-02-09Title: Matrix Models and Topological Recursion II
Abstract: Continued from the previous lecture, we will study how the topological recursion was discovered in the study of Hermitian matrix models. More concretely, starting with the spectral curve of a 1-cut Hermitian matrix model, I will present a computational technique that recursively solves loop equations. If time permits, I will make the recursive technique more abstract, and "define" the topological recursion.
Seminar: Triple scaling of a multimatrix model U(N)^2 x O(D) (Prof. Reiko Toriumi, OIST)
2021-02-05Title: Triple scaling of a multimatrix model U(N)^2 x O(D)
SYK Seminar, Part I: Introduction (Rotation Project)
2021-02-04As part of my rotation project I will give a series of introductory lectures on the SYK model. In Part I, I will write down the basic definition and give a sketchy overview of currently investigated aspects.