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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2297
DTSTART:20111004T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260416T231830Z
LAST-MODIFIED:20111025T124030Z
LOCATION:Chamberlin 5280
SUMMARY:A global perspective on string inflation\, Theory Seminar (Hig
 h Energy/Cosmology)\, Ted van der Aalst\, Leiden University
DESCRIPTION:Although inflation is a coarse phenomenon in classical gra
 vity\, it is remarkably difficult to describe it in (worldsheet) strin
 g theory due to a sensitive dependence on global information of the th
 eory. This sensitivity provides an opportunity to probe stringy phenom
 ena by cosmological observations\, but only if the model is fully root
 ed into string theory. We will discuss some of the requirements for ob
 taining string inflation both in a supergravity context as well as fro
 m a worldsheet perspective. At the worldsheet level\, inflation indeed
  poses coarse but generic conditions on the worldsheet theory\, manife
 sting itself via non-perturbative effects.
URL:https://www.physics.wisc.edu/events/?id=2297
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