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Theory Seminar (High Energy/Cosmology)

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Events During the Week of September 6th through September 13th, 2015

Monday, September 7th, 2015

No events scheduled

Tuesday, September 8th, 2015

Natural Inflation and the Weak Gravity Conjecture
Time: 3:00 pm - 4:00 pm
Place: 5280 Chamberlin Hall
Speaker: Pablo Soler Gomis, University of Wisconsin-Madison
Abstract: Axions, enjoying an approximate shift symmetry, are some of the most popular inflaton candidates in the market. Via mixing and alignment, they seem to yield viable models of (natural) large field inflation, with corresponding trans-Planckian inflaton excursions. I will describe in this talk how, however, generic considerations of quantum gravity prevent such mechanisms to generate the large field ranges required for successful inflation, thus putting the whole natural inflation program in jeopardy. I will also critically address possible loopholes of this “no-go” theorem and attempts to overcome it.
Host: Amol Upadhye
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Wednesday, September 9th, 2015

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Thursday, September 10th, 2015

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Friday, September 11th, 2015

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