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DTSTART;TZID=Europe/Madrid:20251127T120000
DTEND;TZID=Europe/Madrid:20251127T130000
DTSTAMP:20260405T232221
CREATED:20251121T123840Z
LAST-MODIFIED:20251218T085316Z
UID:23879-1764244800-1764248400@www.ift.uam-csic.es
SUMMARY:String\, Pheno and the Swampland Journal Club: 'Anomaly-induced vanishing of brane partition functions'
DESCRIPTION:Speaker: Michelangelo Tartaglia (IFT) \nVenue & Time: Red Room / 12:00 \nAbstract: In the presence of ‘t Hooft anomalies\, backgrounds for the symmetries of a quantum field theory can lead to non-conservation of Noether currents\, or more generally\, to the presence of charged insertions in the path integral. When there is a net background charge\, the partition function evaluated on closed manifolds will vanish. For anomalous symmetries\, this statement can also be understood as the anomaly theory giving rise to a non-trivial anomalous phase for the partition function even for “rigid” transformations which leave all background fields unchanged. We use the generalisation of this second viewpoint to the setting of anomalous higher-form symmetries in order to show vanishing of the partition function for a number of examples\, both with and without a Lagrangian description. In particular\, we show how to derive from these considerations the analogue of the Freed-Witten anomaly cancellation condition for the M5-brane\, and also that for the D3-brane in S-fold backgrounds.
URL:https://www.ift.uam-csic.es/event/string-pheno-and-the-swampland-journal-club/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
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