Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F28: Statistical Physics of Networks: Theory and Applications to Complex Systems I
8:00 AM–10:36 AM,
Tuesday, March 5, 2024
Room: 101I
Sponsoring
Units:
GSNP DSOFT DBIO
Chair: Santo Fortunato, Indiana Univ - Bloomington
Abstract: F28.00010 : The role of network structure in circadian system adaptation
10:12 AM–10:24 AM
Presenter:
Sneha Kachhara
(Northwestern University)
Authors:
Sneha Kachhara
(Northwestern University)
Rosemary Braun
(Northwestern University)
This complex system has previously been modeled as a globally connected network of limit cycle oscillators. However, this simple model does not account for any internal structure that might influence its robustness and adaptation to external influences. Our goal is to understand the relationship between the structural properties of this network and its response to changes in the environment.
We focus on the phenomenon of jet lag as an example: adjusting to a new time-zone after flying westward is generally easier than flying eastward. Starting from an all-to-all connected network of Kuramoto oscillators, we make systematic changes to the structure and quantify the east/west adjustment asymmetry in each case. We find that hierarchical networks have the most gradual and asymmetrical re-entrainment and regular networks the least. These insights may also be applied to other adaptable networked systems.
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