Colloquium
Upcoming Colloquium
Topological semimetals in heavy fermion compounds
Dr. Silke Paschen, Vienna University
March 10, 2025
11:00am in HSCI-105
Tuning the correlation strength of electronic materials has led to the identification and classification of novel quantum phases, thereby elucidating the underlying physics. To explore how this landscape transforms in the presence of nontrivial electronic topology represents a new frontier. After a general discussion of this background I will focus on the case of gapless electronic topology driven by strong correlations. This regime can be ideally explored in heavy fermion compounds. I will introduce the first such materials class, Weyl-Kondo semimetals, and report on the giant signatures of topology and the genuine topology control that can be achieved in these materials. I will also discuss design strategies for further correlation-driven topological phases and, as an example, highlight a new emergent topological phase that nucleates out of a strange metal state.
About the Colloquium
The Colloquium is a unique opportunity for students to learn about new developments in physics and what physicists do after they graduate. Hosted by the Physics and Astronomy Department at California State University, Long Beach, the weekly meetings invite guests from universities, research laboratories, and industry to present and discuss current topics in physics. All students are encouraged to attend for a well-rounded experience and training in physics.
Colloquium Coordinator
For information and suggestions about the colloquium please contact the colloquium coordinator:
Dr. Zoltan Papp
Zoltan.Papp@csulb.edu
Schedule
| Date | Title | Speaker and Affiliation |
|---|---|---|
| March 10, 2025 | Topological semimetals in heavy fermion compounds | Dr. Silke Paschen, Vienna University |
| March 24, 2025 | (topic: condensed matter experiment) | Karoly Holczer, UCLA |
| April 7, 2025 | TBD | TBD |
| April 14, 2025 | (topic: condensed matter experiment) | Cristopher Barty, UC Irvine |
| April 21, 2025 | (topic: condensed matter theory) | Kalman Varga, Vanderbilt |
| April 28, 2025 | (topic: condensed matter theory) | Thomas Baker, University of Victoria, Canada |
| May 5, 2025 | Physics Student Research Presentations | Physics Students, CSU Long Beach |
| May 7, 2025 | Physics Student Research Presentations | Physics Students, CSU Long Beach |
Previous Colloquia
| Date | Title | Speaker and Affiliation |
|---|---|---|
| March 3, 2025 | Illuminating the Dark Sector | Dr. Daniel Diaz, UC San Diego |
| February 24, 2025 | Nontrivial band-topology in dimerized quantum magnets | Dr. Judit Romhanyi, UC Irvine |
| February 17, 2025 | Advances in Hadron Physics from Color-Confining Light-Front Holography: A Novel Nonperturbative Approach to Color Confinement, Hadron Spectroscopy, and Dynamics | Dr. Stanley Brodsky, Stanford University |
| February 10, 2025 | An Overview of AI and Machine Learning Research at the Nevada National Security Sites | Dr. Arnulfo Gonzalez, National Nuclear Security Site, Las Vegas |
| January 27, 2025 | Femtosecond Laser Eye Surgery: The Journey from Discovery to Commercial Products | Dr. Tibor Juhasz, UC Irvine |
| February 3, 2025 | Who’s Afraid of Quantum Interference? | Dr. Matthew Leifer, Chapman University |
The Colloquium Archive has the Colloquia from previous semesters.
Sponsors
We acknowledge with gratitude donations and support from the following present sponsors:
- H.E. and H.B. Miller and Family Endowment
- Benjamin Carter
- American Physical Society
- Anonymous
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
