Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session A35: Liquid Crystals I
8:00 AM–10:12 AM,
Monday, March 4, 2024
Room: 103A
Sponsoring
Unit:
DSOFT
Chair: Tadej Emersic, University of Chicago, Pritzker School of Molecular Engineer
Abstract: A35.00001 : Topological defects beyond the Coulomb gas:memory effects and the role of elasticanisotropy.
8:00 AM–8:12 AM
Presenter:
Jacopo Romano
(Max Planck Institute for Dynamics and Self-Organization)
Authors:
Jacopo Romano
(Max Planck Institute for Dynamics and Self-Organization)
Benoit Mahault
(Max Planck Institute for Dynamics and Se)
Ramin Golestanian
(Max Planck Institute for Dynamics and Self-Organization)
Their dynamics is modeled as a particle-field problem, with the orientation field acting as the interaction potential produced by particle-like singularities.
While most of the studies focus on the study of quasi-static, isotropic defects way fewer theoretical results have been obtained outside of this regime. To address this issue, we solve the multivalued diffusion equation for the orientation field of a defect with an arbitrary trajectory, revealing qualitatively new features that emerge as a result of the system's memory on the previous position of the singularity. We then propose a novel framework for the derivation of the equation ruling the motion of the defects and use it to compute the trajectories of annihilating pairs in liquid crystals with elastic anisotropy. Our results accord well with direct simulations of the full-order parameter dynamics.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700