Defect Conformal Manifolds from Phantom Noninvertible Symmetries
Antinucci, A Copetti, C Galati, G Rizi, G Physical Review Letters volume 135 issue 21 211602 (21 Nov 2025)
Sharp error bounds for approximate eigenvalues and singular values from subspace methods
Nakatsukasa, Y SIAM Journal on Matrix Analysis and Applications
A new 5-D highly hyperchaotic system with a line equilibrium, its bifurcation analysis, multistability and electronic circuit simulation
Vaidyanathan, S Hannachi, F Moroz, I Mohamed, M Sambas, A Aruna, C Raju, A Archives of Control Sciences 561-585-561-585 (30 Sep 2025)
On complex network techniques for atmospheric flow analysis: a polar vortex case study
Reboredo Prado, M Lambiotte, R Moroz, I Osprey, S Journal of Physics: Complexity (18 Nov 2025)
Privacy-preserving local language models accurately identify the presence and timing of self-harm in electronic mental health records (Preprint)
Kormilitzin, A Joyce, D Tsiachristas, A Borschmann, R Kapur, N Geulayov, G
Optimal experimental design for parameter estimation in the presence of observation noise
Qi, J Baker, R Mathematical Biosciences (27 Nov 2025)
Wed, 26 Nov 2025
13:00
Quillen Room N3.12

From 3D Chern-Simons Theory to Knot Invariants

Yuhan Gai
Abstract

Witten’s seminal 1988 work revealed the connection between 3-dimensional Chern-Simons theory and knot invariants. In this talk, I will provide a physically motivated overview and explain how skein relations manifest from a path-integral/partition-function perspective on 3-manifolds with Wilson lines inserted. There will also be some fun topological brain-twisters for the audience. If time permits, I will comment on recent developments involving factorization homology and its relation to correlators for logarithmic CFTs.

Junior Strings is a seminar series where DPhil students present topics of common interest that do not necessarily overlap with their own research area. This is primarily aimed at PhD students and post-docs but everyone is welcome.

Wed, 21 Jan 2026
14:30
L3

TBA

Nutsa Gegelia
(Johannes Gutenberg University Mainz)
Diophantine problems of avoiding unlikely intersections
Ballini, F Pila, J
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