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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-9791
DTSTART:20261102T173000Z
DTEND:20261102T190000Z
DTSTAMP:20261104T075614Z
LAST-MODIFIED:20261029T194831Z
LOCATION:Chamberlin 5280
SUMMARY:On Domain Walls Between String Theories\, Theory Seminar (High
  Energy/Cosmology)\, Ethan Torres\, IHES\, Harvard
DESCRIPTION:Several bottom-up arguments suggest that there exist finit
 e energy-density domain walls separating any two quantum gravity vacua
 . Generically\, such domain walls must be non-supersymmetric and have 
 no known formulation in string perturbation theory. In this talk\, I w
 ill detail nonperturbative matrix string theory constructions of domai
 n walls separating various 10d and 9d string theory vacua. I will disc
 uss how these constructions can be used to compute the energy densitie
 s of such walls\, and how one can understand Callan-Rubakov-like subtl
 eties of having a domain wall separating a chiral vacuum from a non-ch
 iral vacuum. If time permits\, I will also discuss the prospects for e
 xploring the non-BPS brane spectrum of string/M-theory more generally.
URL:https://www.physics.wisc.edu/events/?id=9791
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