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X-WR-CALDESC:Events for Instituto de Física Teórica
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DTSTART;TZID=Europe/Madrid:20260226T120000
DTEND;TZID=Europe/Madrid:20260226T130000
DTSTAMP:20260724T102410
CREATED:20260220T135105Z
LAST-MODIFIED:20260220T135105Z
UID:24428-1772107200-1772110800@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Anomaly-induced vanishing of brane partition functions'
DESCRIPTION:Strings\, Pheno and the Swampland Journal Club (SPS) \nSpeaker: Michelangelo Tartaglia (IFT) \nTitle: ‘Anomaly-induced vanishing of brane partition functions’ \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/sps-journal-club-anomaly-induced-vanishing-of-brane-partition-functions/
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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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T120000
DTEND;TZID=Europe/Madrid:20260226T130000
DTSTAMP:20260724T102410
CREATED:20260220T141822Z
LAST-MODIFIED:20260220T141822Z
UID:24440-1772107200-1772110800@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Thursday at 12:00 in Grey Room 3.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-8/
LOCATION:Gray Room 3\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T170000
DTEND;TZID=Europe/Madrid:20260226T180000
DTSTAMP:20260724T102410
CREATED:20260220T155551Z
LAST-MODIFIED:20260220T155551Z
UID:24442-1772125200-1772128800@www.ift.uam-csic.es
SUMMARY:Old Journal Club: 'Generalized Global Symmetries'
DESCRIPTION:Miquel Aparici Domingo (IFT) will present Generalized Global Symmetries by Davide Gaiotto\, Anton Kapustin\, Nathan Seiberg\, Brian Willett\,  JHEP 02 (2015) 172\n\nAbstract:\nA q-form global symmetry is a global symmetry for which the charged operators are of space-time dimension q\, e.g. Wilson lines\, surface defects\, etc.\, and the charged excitations have q spatial dimensions\, e.g. strings\, membranes\, etc. Many of the properties of ordinary global symmetries (q = 0) apply here. They lead to Ward identities and hence to selection rules on amplitudes. Such global symmetries can be coupled to classical background fields and they can be gauged by summing over these classical fields. These generalized global symmetries can be spontaneously broken (either completely or to a sub-group). They can also have ’t Hooft anomalies\, which prevent us from gauging them\, but lead to ’t Hooft anomaly matching conditions. Such anomalies can also lead to anomaly inflow on various defects and exotic Symmetry Protected Topological phases. Our analysis of these symmetries gives a new unified perspective of many known phenomena and uncovers new results.
URL:https://www.ift.uam-csic.es/event/old-journal-club-generalized-global-symmetries/
LOCATION:Blue 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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