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DTSTART;TZID=America/New_York:20251009T160000
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DTSTAMP:20260710T082442
CREATED:20250904T162516Z
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UID:10003779-1760025600-1760029200@cmsa.fas.harvard.edu
SUMMARY:Symmetries and Moduli Spaces: Baby Steps beyond Calabi-Yau
DESCRIPTION:Differential Geometry and Physics Seminar  \nSpeaker: Xingyang Yu\, Virginia Tech \nTitle: Symmetries and Moduli Spaces: Baby Steps beyond Calabi-Yau \nAbstract: I will explore the interplay between symmetries and moduli spaces in string compactifications\, starting from the familiar Calabi–Yau case and then taking some baby steps toward more general settings. A classical benchmark is the line bundle over Calabi–Yau complex structure moduli space\, whose physical counterpart corresponds to the Berry phase of the spectral flow operator in worldsheet SCFT. I will review this story and then discuss how it begins to change in c=1 theories with worldsheet anomalies\, and in G_2 and Spin(7) compactifications where U(1)_R symmetry is absent. The goal is not a finished framework\, but to highlight how anomalies and non-invertible symmetries may enter the picture and to raise open questions about what kinds of structures might live over moduli spaces beyond Calabi–Yau.
URL:https://cmsa.fas.harvard.edu/event/dgphys_10925/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Differential Geometry and Physics Seminar
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