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X-FROM-URL:https://eom.sdu.dk/events/ical/f1da0f70-bf5e-4781-b3d3-41354de8
 6abb
X-WR-CALNAME:QM Research Seminar: Towards Holography from Calabi-Yau Categ
 ories
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TZID:Europe/Copenhagen
X-LIC-LOCATION:Europe/Copenhagen
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DTSTAMP:20260720T025744Z
DTSTART:20261028T030000
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DESCRIPTION:[b]Speaker: [/b]Jakob Ulmer\n(​Sorbonne Paris Norht University
 )\n\n\n[b]Abstract:[/b] I will recall the work of Costello\, Caldararu-Tu
  on how to extract 'enumerative‘ invariants out of a Calabi-Yau category 
 C\, conjecturally matching GW invariants of M symplectic if C=Fuk(M). The
 ir work is an algebraic incarnation of closed string field theory (SFT)\;
  the invariants are assembled in the partition function of the closed SFT
  associated to C. Next I will report on work in progress (by U.\, Amorim-
 Tu and using results of Voronov et. al) how to define the partition funct
 ion of large N open SFT on a stack of N branes of an object x of C\, conj
 ecturally related to open GW invariants. Finally I explain how to define 
 the partition function of closed SFT of C\, backreacted in the direction 
 of an object x. This is directly inspired by constructions in the ’Twiste
 d Holography’ proposal of Costello-Gaiotto.
DTEND:20250520T140000Z
DTSTAMP:20260720T025744Z
DTSTART:20250520T130000Z
LOCATION:Syddansk Universitet\, Campusvej 55\, 5230\, Odense M
SEQUENCE:0
SUMMARY:QM Research Seminar: Towards Holography from Calabi-Yau Categories
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