Events at Physics

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Events on Tuesday, May 7th, 2024

Academic Calendar
Final Exams
Abstract: *Note: actual end time may vary.* URL:
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Graduate Program Event
Personal Finance Workshop for Grad Students
Time: 12:00 pm - 1:00 pm
Place: 5280 CH
Speaker: Carol Hulland
Abstract: Several of you have asked me about arranging for someone to come speak about personal finance for graduate students. Questions about saving and budgets and generally managing funds are challenging. Carol Hulland is willing to present a workshop for you on starting early and continuing throughout one’s work life to take steps that build financial resilience.
Host: Sharon Kahn
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Preliminary Exam
Flow-based Nonperturbative Simulation of First-order Phase Transitions
Time: 2:00 pm - 4:00 pm
Place: B343, Sterling Hall
Speaker: Dean Chen, Physics PhD Graduate Student
Abstract: In this talk, I will introduce a flow-based nonperturbative method to study the first-order phase transition (FOPT) of a scalar field theory on a lattice. Motivated by possible early-universe first-order electroweak and QCD phase transitions and recent developments in machine learning tools, including normalizing flows (NFs) for lattice field theory, we have developed a simulation algorithm to efficiently calculate bubble nucleation rates. We propose the ``partitioning flow-based (PF) sampling" method to overcome two challenges in the application of NFs for lattice field theory: the "mode-collapse" and "rare-event sampling" problems. Using a (2+1)-dimensional real scalar model as an example, we demonstrate the capability of our PF method to calculate the nucleation rates for the thermal FOPT. This method could be applied to (3+1)-dimensional theories and used to study realistic cosmological phase transitions.
Host: Yang Bai
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Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
Phenomenology of Effective Field Theory with Sterile Neutrinos
Time: 2:00 pm
Place: Join Zoom Meeting Meeting ID: 912 3071 4547
Speaker: Kaori Fuyuto , LANL
Abstract: Sterile neutrino is one of the attractive hypothetical particles that can explain major puzzles in our Universe: the origin of neutrino mass, the existence of dark matter, and the matter-antimatter asymmetry. Standard Model (SM) effective field theory with light sterile neutrinos is called nuSMEFT, which includes not only renormalizable interactions between the SM particles and sterile neutrinos but also higher-dimensional operators obtained by integrating out heavy degrees of freedom. In this talk, I will discuss how nuSMEFT interactions contribute to neutrinoless double beta decay and sterile neutrino Dark Matter.
Join Zoom Meeting
Host: Baha Balantekin
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Wisconsin Quantum Institute
Quantum Coffee Hour
Time: 3:00 pm - 4:00 pm
Place: Rm.5294, Chamberlin Hall
Abstract: Please join us for the WQI Quantum Coffee today at 3PM in the Physics Faculty Lounge (Rm.5294 in Chamberlin Hall). This series, which takes place approximately every other Tuesday, aims to foster a casual and collaborative atmosphere where faculty, post-docs, students, and anyone with an interest in quantum information sciences can come together. There will be coffee and treats.
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