"The Hunt for Cosmic Strings and Dark Matter in Quantum Materials " by Sinéad Griffin (Berkeley Lab)

Thursday, May 23, 2019 - 4:00pm to 5:00pm
Physics and Astronomy Colloquium

Thursdays, 4:00-5:00 pm

1-434 Physics and Astronomy (map)
Reception from 3:45-4:00 p.m.
 (unless otherwise posted)

Guest Speaker: Sinéad Griffin (Materials Science Division and Molecular Foundry, Berkeley Lab)

Talk Title:  “The Hunt for Cosmic Strings and Dark Matter in Quantum Materials”


Leaping from astronomical scales to the nanoscale might seem a gargantuan task. Common to both, however, is the concept of symmetry breaking and the formation of so-called ‘topological defects’. In the first part of this talk, I will discuss the formation of topological defects in multiferroic materials show how they can be used to study an early-universe theory, the Kibble-Zurek mechanism, in these functional materials. In the second part, I will talk about how new phenomena and materials are key for the search for the elusive dark matter, and discuss new routes to detecting ultra-light dark matter using quantum-mechanical calculations.

For more information, contact Yaroslav Tserkovnyak

We thank the following people for their contributions to the wine fund for the post-colloquium reception:
Professors Katsushi Arisaka, Andrea Ghez, Karoly Holczer, Huan Huang, HongWen Jiang, Per Kraus, Alexander Kusenko, Matthew Malkan, Mayank Mehta, Warren Mori, Ni Ni, Seth Putterman, David Saltzberg, Yaroslav Tserkovnyak, Vladimir Vassiliev, Shenshen wang, and Nathan Whitehorn.

1-434 PAB