Events at Physics

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Events During the Week of September 5th through September 12th, 2021

Monday, September 6th, 2021

Academic Calendar
Labor Day holiday
Abstract: *Note: actual end time may vary.* no classes
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Tuesday, September 7th, 2021

Academic Calendar
Graduate School Fall 2021: Fall degree window period deadline for master&#39;s students
Time: 4:00 pm
Abstract: CONTACT: 262-2433,
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Academic Calendar
Graduate School Fall 2021: Fall degree window period deadline for doctoral students
Time: 11:55 pm
Abstract: *Important Note: The “Window Period” is the time between the end of one degree period and the beginning of the next. You must have been registered for the previous semester (Fall, Spring, or Summer). If all degree requirements are met by the end of the window period, your degree will be granted for the following semester. However, you will not have to register or pay fees for the next semester. CONTACT: 262-2433, URL:
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Wednesday, September 8th, 2021

Academic Calendar
Fall semester instruction begins
Abstract: *Note: actual end time may vary.*
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Physics ∩ ML Seminar
JAX MD: A Framework for Differentiable Atomistic Physics
Time: 11:00 am
Place: Online Seminar: Please sign up for our mailing list at for zoom link
Speaker: Sam Schoenholz, Google Brain
Abstract: I will talk about JAX MD, a software package for performing differentiable physics simulations with a focus on molecular dynamics. JAX MD includes a number of physics simulation environments, as well as interaction potentials and neural networks that can be integrated into these environments without writing any additional code. Since the simulations themselves are differentiable functions, entire trajectories can be differentiated to perform meta-optimization. These features are built on primitive operations, such as spatial partitioning, that allow simulations to scale to hundreds-of-thousands of particles on a single GPU. My talk will include an introduction to the JAX software package If you are interested in trying out JAX MD, it is available at
Host: Gary Shiu
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Department Meeting
Prof. Bergmann's Investiture Ceremony and Public Lecture
Time: 7:00 pm
Place: Discovery Building, H.F. DeLuca Forum, or register for Zoom link at:
Speaker: Uwe Bergmann, UW–Madison Physics
Join the department and Wednesday Nite @ The Lab for Prof. Bergmann's investiture ceremony and public lecture. A reception will follow.

On November 8, 1895, Wilhelm Conrad Rӧntgen discovered a new invisible form of rays. He called them ‘X-Strahlen’ or X-rays. Since that day, X-rays have revolutionized medical imaging and science. Starting in the 1970s, powerful accelerator rings — the so-called synchrotrons — have dramatically advanced the scientific use of X-rays, by producing intense and highly-focused X-ray beams. Another quantum leap occurred in the late 2000s, when X-ray free-electron lasers came to light. These X-ray lasers produce ultra-short pulses with a brightness over one billion times larger than even the most powerful synchrotron sources. For the first time, scientists can study matter not just at the length scale of atoms and molecules, but also at the femtosecond (10-15 s) timescale of molecular motion. The dream of making molecular movies of a chemical reaction or a biological function in real time is becoming reality. We will describe these machines and present some of the most exciting examples of recent X-ray laser research.

The Discovery Building is at 330 N. Orchard St, Madison WI. Park for a small fee in Lot 20 at 1390 University Ave, Madison WI
Host: Department
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Thursday, September 9th, 2021

Astronomy Colloquium
Show and Tell - One Slide to tell it all! Special Time: 3:00 - 3:45 pm, 4:00 - 4:45 pm.
Time: 3:00 pm
Place: 4421 Sterling Hall
Speaker: Ellen Zweibel, UW Astronomy Department
Abstract: This traditional "Show and Tell" colloquium is especially special this year because it will be the first in person since March 2020. Undergraduate researchers, grad students, postdocs, scientists, and faculty working in Astronomy are encouraged to introduce themselves in 2 minutes, accompanied by one (and only one) slide. This stringent format is necessary because there are so many of us. Even so, note the early start time and extra time alloted.
Host: Ellen Zweibel
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Friday, September 10th, 2021

Graduate Introductory Seminar (Physics 701)
Emerging ideas for future colliders
Time: 12:05 pm
Place: 2241 Chamberlin
Speaker: Sridhara Dasu, UW Madison Department of Physics
Host: Sridhara Dasu
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Physics Department Colloquium
State of the Department
Time: 3:30 pm
Place: 2103 Chamberlin Hall
Speaker: Mark Eriksson, Department Chair, UW-Madison, Department of Physics
Abstract: Coffee and pre-packaged treats will be available at 3:15 outside, on the front steps of Chamberlin.
Host: Alex Levchenko
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Saturday, September 11th, 2021

Graduate Program Event
Fall 2021 Qualifying Exam
Place: In Person-Chamberlin Hall
Abstract: ALL DAY *NOTE-Date changed to Saturday, September 11th, 2021*
Host: Michelle Holland, Graduate Program Coordinator
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