Events at Physics

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Events on Friday, September 18th, 2020

Graduate Introductory Seminar (Physics 701)
Particle Astrophysics
Time: 12:05 pm
Place: BBCollaborate
Speaker: Justin Vandenbroucke
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Theory Seminar (High Energy/Cosmology)
Classical aspects of black hole interiors
Time: 2:00 pm - 3:00 pm
Place: For zoom link, sign up at:
Speaker: Jorrit Kruthoff, Stanford University
Abstract: In AdS/CFT, we know that relevant operators, for instance a scalar source, can drastically change the bulk geometry. Normally one is only interested in what happens outside the horizon, but during this talk I will dive inside various black holes and discuss the effects of relevant operators. The dynamics turns out to be rather intricate with even fractal-like behaviour emerging. Furthermore, we will see that generically, Cauchy horizons will be replaced by a spacelike singularity in the presence of a relevant scalar source. This motivates a notion of ‘holographic’ cosmic censorship. This talk is based on 2006.10056 and 2008.12786.
Host: Lars Aalsma
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Department Coffee Hour
Time: 3:30 pm - 4:30 pm
Abstract: Join us weekly for an informal virtual coffee hour! Catch up with others in the department, tell us how things are going, and impress everyone with your Zoom background skills. Coffee Hour is open to any and all faculty, staff, and students in the department. Sometimes we have a topic, and we'll try to get that topic posted here in advance or sent out by email before each coffee hour.
Host: Department
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