BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:5
UID:UW-Physics-Event-8584
DTSTART:20240219T220000Z
DTEND:20240219T230000Z
DTSTAMP:20260413T223602Z
LAST-MODIFIED:20240214T162959Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Hierarchies from string theory\, Theory Seminar (High Energy/C
 osmology)\, Jakob Moritz\, CERN
DESCRIPTION:I will explain a series of my works that has resulted in t
 he first ever construction of a controlled cosmological solution of st
 ring theory in which the vacuum energy — though negative in sign —
  is exponentially small\, while extra dimensions are microscopic. I wi
 ll also\, in brief terms\, outline some of my ongoing efforts to const
 ruct solutions with positive vacuum energy. Finally\, I will turn to a
 nother series of my works about probing string theoretic axions — th
 e string axiverse. I will argue that the strong CP problem is generica
 lly absent in string compactifications\, and that future observation m
 ight well detect string theoretic axions through their couplings to ph
 otons.
URL:https://www.physics.wisc.edu/events/?id=8584
END:VEVENT
END:VCALENDAR