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DTSTART;TZID=America/New_York:20260504T150000
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DTSTAMP:20260421T192826
CREATED:20260126T190454Z
LAST-MODIFIED:20260126T190454Z
UID:10003880-1777906800-1777910400@cmsa.fas.harvard.edu
SUMMARY:Quantum Field Theory and Physical Mathematics
DESCRIPTION:Quantum Field Theory and Physical Mathematics Seminar \nSpeaker: Surya Raghaven\, Yale University
URL:https://cmsa.fas.harvard.edu/event/qft_5426/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Quantum Field Theory and Physical Mathematics
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DTSTART;TZID=America/New_York:20260504T163000
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DTSTAMP:20260421T192826
CREATED:20260323T160718Z
LAST-MODIFIED:20260421T135719Z
UID:10003923-1777912200-1777915800@cmsa.fas.harvard.edu
SUMMARY:Dynamics as intersection problem
DESCRIPTION:Colloquium \nSpeaker: Nikita Nekrasov\, Simons Center \nTitle: Dynamics as intersection problem \nAbstract: Most classical and quantum field theories are based on an action principle. However\, there are important exceptions to this — hydrodynamics and the theory of self-dual fields. In this talk we formulate the covariant relativistic fluid dynamics\, with or without magnetic fields\, as well as the theory of chiral boson in 1+1 dimensions\, self-dual tensor in 1+5 dimensions\, and self-dual four-form of IIB supergravity\, in terms of intersection theory of an auxiliary phase space. This provides a common covariant geometric framework for systems without a conventional action\, while at the same time laying the groundwork for quantization via the Kontsevich approach. Joint work with Paul Wiegmann. \n  \n 
URL:https://cmsa.fas.harvard.edu/event/colloquium-5426/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Colloquium-5.4.2026.docx.png
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