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SUMMARY:Andrea Dei (Chicago University\, EFI)
DTSTART:20241002T140000Z
DTEND:20241002T150000Z
DTSTAMP:20260423T021132Z
UID:AnLy/46
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AnLy/46/">On
  supergravity and noncritical strings</a>\nby Andrea Dei (Chicago Universi
 ty\, EFI) as part of AnLy Strings and Fields online seminars\n\n\nAbstract
 \nWhat is the string theory dual to 4d N=2 Super Yang Mills? Motivated by 
 this question\, I will revisit some “noncritical” superstring models: 
 these are string theories defined in less than ten spacetime dimensions. F
 ocusing on the setup with 6d Poincaré invariance\, I will explain how a c
 areful worldsheet analysis allows to identify the leading-order effective 
 theories for the lowest modes. These are seven-dimensional\, maximally sup
 ersymmetric gauged supergravities. The noncritical string can be viewed as
  a special case of a discrete series of backgrounds labelled by an integer
  k: the “noncritical” value is k = 2\, while for k → ∞ one recover
 s a weakly-curved 10d target space. We will discuss the worldsheet approac
 h by boundary states and BPS solutions to the supergravity equations of mo
 tion.\n
LOCATION:https://researchseminars.org/talk/AnLy/46/
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