Academics

Mining for modular data from congruence representations | BlMSA-Tsinghua Quantum Symmetry Seminar

Time:2024-06-05 Wed 10:30-12:00

Venue:A3-3-301 Zoom: 242 742 6089 BIMSA

Organizer:Zhengwei Liu, Jinsong Wu, Linzhe Huang, Sebastien Palcoux, Yilong Wang

Speaker:Siu-Hung Ng吴少雄 Louisiana State University

Abstract

Modular fusion categories (MFCs) arise naturally in many areas of mathematics and physicsAssociated with an MFC is a pair of complex matrices, called modular data, which are arguably themost important invariants of an MFC. The modular data of an MFC generate some uncanonicalcongruence representations of SL(2,Z). In this talk, we will discuss how modular data could bereconstructed or discovered from congruence representations of SL(2.Z). The talk is based on ajoint work with Eric Rowell, Zhenghan Wang and Xiao-Gang Wen.


DATEJune 4, 2024
SHARE
Related News
    • 0

      Braided Zestings of Verlinde Modular Categories and Their Modular Data | BIMSA-Tsinghua Quantum Symmetry Seminar

      AbstractIn this talk, I will describe the construction known as 'Zesting of Braided Fusion Categories', a procedure that can be used to obtain new modular categories from a modular category with non-trivial invertible objects. I will also present our work on classifying and constructing all possible braided zesting data for modular categories associated with quantum groups at roots of unity. We...

    • 1

      On commutators of quadratic operators | BlMSA-Tsinghua Quantum Symmetry Seminar

      AbstractA bounded linear operator A is said to be quadratic if there is a polynomial p of degree 2 suchthat p(A)=0. Square zero operators, involutions, and idempotents are all typical quadraticoperators. We will give characterizations of matrices could be expressed as commutators of twosquare zero matrices, and explain some related results about limits of commutators of two squarezero operators...