Northwestern Events Calendar

May
1
2025

Condensed Matter Physics Seminar: Ivar Martin: "Condensed Matter Axions: Bridging Particle Physics, Quantum Materials, and Nonlinear Optics"

When: Thursday, May 1, 2025
4:00 PM - 5:00 PM CT

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students

Contact: Joan West   (847) 491-3645

Group: Physics and Astronomy Condensed Matter Physics Seminars

Category: Academic

Description:

Axions were originally proposed to resolve the strong CP problem in particle physics and are now a leading dark matter candidate. Recently, condensed matter systems have emerged as surprising platforms where axion-like excitations can both arise and be dynamically controlled. I will discuss the theoretical background and experimental progress to probe condensed matter axion quasiparticles—collective modes resembling antiferromagnetic magnons in topological insulators and related materials. I will also explore how these systems can not only emulate axion physics but may serve as dark matter detectors, while also enabling novel applications in nonlinear optics, such as phase conjugation and holography.

Ivar Martin, Senior Physicist, Argonne National Laboratory

Host: Venkat Chandrasekhar

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