Higher Symmetries, Eta Invariants and Anomaly Theories

Name: Higher Symmetries, Eta Invariants and Anomaly Theories
Start: 2026-02-26T13:30:00-05:00
End: 2026-02-26T14:30:00-05:00
Location: CMSA, 20 Garden St, G10

CMSA Differential Geometry and Physics Seminar

When: February 26, 2026

1:30 pm - 2:30 pm

Where: CMSA, 20 Garden St, G10

Address: 20 Garden Street, Cambridge, MA 02138, United States

Speaker: Mirjam Cvetic (UPenn)

In recent years, much progress has been made in understanding the extra-dimensional origin of higher symmetry structures of many quantum field theories (QFTs) obtained via geometric engineering. Among others, our understanding of anomaly structures in QFTs has been significantly improved. Key in these considerations is the asymptotic boundary of the internal dimensions which geometrizes many topological QFT features. Within this context we present explicit results for anomaly coefficients in five-dimensional supersymmetric QFTs that are engineered in M-theory on Calabi-Yau three-folds, and show that eta-invariants of the asymptotic boundary of the engineered geometry are key to to determine 1-form self-anomaly coefficients. The results both for orbifolds with isolated and non-isolated orbifold singularities are presented.

Zoom link: https://harvard.zoom.us/j/97952922247?pwd=PMJqfJoalYI19S0z1RgDme2dNQeEiS.1

Password / Meeting ID: 868088 / 979 5292 2247