Events on Tuesday, February 15th, 2022
- Academic Calendar
- Election Day
- Time: 7:00 am - 8:00 pm
- Abstract: Primary election for School Board, County Supervisor, and Judges. Primary election if there are more than 2 candidates, for School Board, County Supervisor, and Judges. Go to MyVote.wi.gov to find your polling place, see what is on your ballot, and check your registration. If you are not registered at your current address, you can register at your polling place on Election Day. See vote.wisc.edu for information on registration and voter ID. (The final election for these contests will be April 5.) CONTACT: malischke@wisc.edu URL:
- R. G. Herb Condensed Matter Seminar
- Quantum randomness: from chaos to quantum computing
- Time: 10:00 am - 11:00 am
- Place: 5310 Chamberlin Hall
- Speaker: Bin Yan, Los Alamos National Laboratory
- Abstract: The development of quantum technologies has now become a global race owing to its great promise to revolutionize our ability for information processing. On the other hand, the influence of quantum information science has concurrently penetrated into research areas of fundamental physics as well. In this talk, I will thus focus on a topic at the interface between Physics and Quantum Information. Specifically, I will present our approach to the study of quantum chaos from a quantum information point-of-view, and explore the implications of chaotic dynamics on the performance of quantum machine learning. Notably, quantum chaos is of fundamental interest and is crucial for answering several key questions in condensed matter physics, e.g., thermalization in isolated many-body systems. Similarly, quantum machine learning offers an appealing synergistic approach for combining and utilizing the potentials of machine learning and quantum computers. The interplay between these fields demonstrates how technical toolkits developed in Quantum Information can be applied to study problems in Physics, and vice versa insight from physics can strengthen our understanding of the limitations of quantum information processing. I will conclude this talk with a discussion about several relevant ongoing and future directions, including quantum networking and quantum correlations in quantum material.
- Host: Robert McDermott
- Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
- Multi-messenger astronomy with high-energy neutrinos
- Time: 2:00 pm - 3:00 pm
- Place: Join Zoom Meeting Meeting ID: 912 3071 4547
- Speaker: Anna Franckowiak, DESY & U. of Bochum
- Abstract: Cosmic rays are charged particles (mainly protons) that bombard the Earth from all directions reaching energies up to 10 million times what can be achieved by the most powerful man-made accelerator, the LHC. Their origin is difficult to trace, because cosmic rays are deflected by magnetic fields on their journey from their source to Earth. However, cosmic rays produce gamma-ray photons and neutrinos in interactions with matter and photon fields in or close to their source. Being neutral those secondary particles can travel undeflected and ultimately point back to the source. While gamma rays are not solely produced in interactions of cosmic ray protons, neutrinos provide a smoking-gun signature for acceleration of protons (or heavier nuclei). A diffuse flux of cosmic neutrinos was first discovered by the cubic-kilometer-sized IceCube detector located at the South Pole in 2013. I will present the ongoing search for the origin of those neutrinos using multi- messenger studies and discuss promising candidate sources with a focus on the new promising neutrino source class of tidal disruption events. Join Zoom Meeting Meeting ID: 912 3071 4547
- Host: Baha Balantekin
- Multi-messenger astronomy with high-energy neutrinos
- Time: 2:00 pm
- Place: Join Zoom Meeting Meeting ID: 912 3071 4547
- Speaker: Anna Franckowiak , DESY/Ruhr University Bochum
- Abstract: Cosmic rays are charged particles (mainly protons) that bombard the Earth from all directions reaching energies up to 10 million times what can be achieved by the most powerful man-made accelerator, the LHC. Their origin is difficult to trace, because cosmic rays are deflected by magnetic fields on their journey from their source to Earth. However, cosmic rays produce gamma-ray photons and neutrinos in interactions with matter and photon fields in or close to their source. Being neutral those secondary particles can travel undeflected and ultimately point back to the source. While gamma rays are not solely produced in interactions of cosmic ray protons, neutrinos provide a smoking-gun signature for acceleration of protons (or heavier nuclei).
A diffuse flux of cosmic neutrinos was first discovered by the cubic-kilometer-sized IceCube detector located at the South Pole in 2013. I will present the ongoing search for the origin of those neutrinos using multi-messenger studies and discuss promising candidate sources with a focus on the new promising neutrino source class of tidal disruption events.
Join Zoom Meeting
Meeting ID: 912 3071 4547
- Host: Baha Balantekin