Colloquium

Upcoming Colloquium

Topology and Mechanics of Kinetoplast-Inspired Olympic Gels
Dr. Alex Klotz, CSU Long Beach

October 19, 2026
11:00am-12:00pm in HSCI-102

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Alex Klotz

An Olympic gel is a type of material consisting of topologically linked ring polymers, predicted to have interesting nonlinear mechanical properties. Kinetoplast DNA is a type of naturally occurring Olympic gel, best described as "molecular chainmail," which consists of thousands of linked circular DNA molecules and is found in the mitochondria of trypanosome parasites. Olympic gels may be assembled in the same manner as kinetoplast DNA, or through other synthetic means. In this talk I will discuss computational efforts to understand the formation of Olympic gels and the relationship between their network topology and their mechanical properties, exploring whether these different assembly processes lead to unique topological and physical features in Olympic gel networks.

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Olympic gel
Fig.: A simulated Olympic gel.

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. Sarah Grefe
Sarah.Grefe@csulb.edu

Schedule

The schedule for Fall 2026 is posted below.

Fall 2026 Schedule
DateTitleSpeaker and Affiliation
October 19, 2026Topology and Mechanics of Kinetoplast-Inspired Olympic GelsDr. Alex Klotz, CSU Long Beach
October 26, 2026(topic: quantum materials experiment)Dr. Jing Xia, UC Irvine
November 2, 2026(topic: astrophysics)Dr. Brad Hansen, UCLA
November 9, 2026(topic: bose-einstein condensation)Dr. Maren Mossman, University of San Diego
November 16, 2026(topic: quantum sensing techniques)Dr. Darmindra Arumugam, JPL
November 30, 2026(topic: AI in mathematics)Dr. Michael Mulligan, UC Riverside
December 7, 2026Student Presentationsstudents, CSU Long Beach
December 9, 2026Student Presentationsstudents, CSU Long Beach

Previous Colloquia

Fall 2026 Schedule
DateTitleSpeaker and Affiliation
October 12, 2026Determining the Radiative Properties of Anthropogenic Halocarbons by Integrating Experimental FTIR Spectroscopy with Quantum Chemistry CalculationsDr. Karine Le Bris, CSU Los Angeles
October 5, 2026Detecting the Secrets of the Cosmos with Quantum MaterialsDr. Elizabeth A. Peterson, Los Alamos National Laboratory
September 28, 2026Faculty Presentationsdepartment faculty, CSU Long Beach
September 21, 2026Metamagnetic Materials as Switchable MRI Cell Tracking Micro-LabelsDr. Barbic Mladen, Caltech
September 14, 2026Unravelling the hidden state of a kagome magnetDr. Yona Soh, Paul Scherrer Institute, Villigen, Switzerland

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
  • Mary L. Bresnan
  • K. Y. Shen
  • 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!