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This Week at Physics

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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

Chaos & Complex Systems Seminar
Field Day Lab @ An introduction to memristors
Time: 12:05 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Wesley Thio, Ohio State University
Abstract: In this talk, an introduction to the electrical circuit element called the “Memristor” will be given. The memristor was first mathematically postulated in 1971, but was not acknowledged by the engineering community until it was built for the first time in 2008. Aside from being an addition to fundamental circuit theory, the memristor also has some unusual properties such as being capable of remembering its past state. This makes the memristor potentially useful for neuromorphic circuits and other technologies. Some demonstrations with memristor emulators will also be given in this talk.
Host: Sprott
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Theory Seminar (High Energy/Cosmology)
Natural Inflation and the Weak Gravity Conjecture
Time: 3:00 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

Department Meeting
Time: 12:15 pm
Place: 5310 Chamberlin Hall
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Thursday, September 10th, 2015

No events scheduled

Friday, September 11th, 2015

No events scheduled

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