Events at Physics |
Events During the Week of July 26th through August 2nd, 2020
Monday, July 27th, 2020
- No events scheduled
Tuesday, July 28th, 2020
- Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
- Neutron Star Merger Dynamics
- Time: 3:30 pm
- Place:
- Speaker: David Radice, Penn State
- Host: Baha Balantekin
Wednesday, July 29th, 2020
- Thesis Defense
- Cosmic Ray Transport and the Galaxy Gas Cycle
- Time: 10:00 am - 11:00 am
- Place: Virtual
- Speaker: Chad Bustard, Physics PhD Graduate Student
- Abstract: Meeting ID: 871 8195 0560 Password: 845382
- Host: Ellen Zweibel, Faculty Advisor
- Physics ∩ ML Seminar
- Discovering Symbolic Models in Physical Systems using Deep Learning
- Time: 11:00 am - 12:00 pm
- Place: Please register for this online event:
- Speaker: Shirley Ho, Flatiron Institute
- Abstract: We develop a general approach to distill symbolic representations of a learned deep model by introducing strong inductive biases. We focus on Graph Neural Networks (GNNs). The technique works as follows: we first encourage sparse latent representations when we train a GNN in a supervised setting, then we apply symbolic regression to components of the learned model to extract explicit physical relations. We find the correct known equations, including force laws and Hamiltonians, can be extracted from the neural network. We then apply our method to a non-trivial cosmology example—a detailed dark matter simulation—and discover a new analytic formula that can predict the concentration of dark matter from the mass distribution of nearby cosmic structures. The symbolic expressions extracted from the GNN using our technique also generalized to out-of-distribution-data better than the GNN itself. Our approach offers alternative directions for interpreting neural networks and discovering novel physical principles from the representations they learn.
- Host: Shiu
- Chicago Quantum Exchange Briefing
- Quantum simulations of materials on near-term quantum computers
- Time: 11:00 am - 12:00 pm
- Place: Virtual; please email quantum@uchicago.edu to request access
- Speaker: Marco Govoni, Argonne National Laboratory
- Abstract: Citation: Quantum simulations of materials on near-term quantum computers.
If you are a CQE member or corporate partner and would like to access these events, contact quantum@uchicago.edu Thursday, July 30th, 2020
- Department Coffee Hour
- Time: 3:00 pm - 4:00 pm
- Place:
- 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.
- Host: Department
Friday, July 31st, 2020
- Atomic Physics Seminar
- Virtual AMO Seminar — TBD
- Time: 2:00 pm - 3:00 pm
- Place: register for the Zoom link at:
- Speaker: TBD, TBD
- Abstract: see for info
- Academic Calendar
- Graduate School Summer 2020: Degree Warrant Request Deadline
- Time: 4:00 pm - 5:00 pm
- Abstract: Graduate program coordinators should request all warrants by this date to ensure consideration for Summer 2020. CONTACT: 262-2433, gsacserv@grad.wisc.edu URL: