Synchronization in Populations of Chemical Oscillators: Quorum Sensing, Phase Clusters and Chimeras

*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************

Event Details
Contact

amorain@gatech.edu

Summaries

Summary Sentence: Synchronization in Populations of Chemical Oscillators: Quorum Sensing, Phase Clusters and Chimeras

Full Summary: No summary paragraph submitted.

Media
  • Ford Lecture Ford Lecture
    (image/jpeg)
School of Physics Annual Joseph Ford Commemorative Lecture: Prof. Kenneth Showalter, West Virginia University

We have studied large, heterogeneous populations of discrete chemical oscillators (~100,000) to characterize two different types of density-dependent transitions to synchronized behavior, a gradual Kuramoto synchronization and a sudden quorum sensing synchronization. We also describe the formation of phase clusters, where each cluster has the same frequency but is phase shifted with respect to other clusters, giving rise to a global signal that is more complex than that of the individual oscillators. Finally, we describe experimental and modeling studies of chimera states and their relation to other synchronization states in populations of coupled chemical oscillators.

A. F. Taylor et al., Science 323, 614 (2009). A. F. Taylor et al., Angewandte Chemie Int. Ed. 50, 10161 (2011). M. R. Tinsley et al., Nature Physics 8, 662 (2012). S. Nkomo et al., Phys. Rev. Lett. 110, 244102 (2013). J. F. Totz et al., Phys. Rev. E 92, 022819 (2015).

Additional Information

In Campus Calendar
Yes
Groups

School of Physics

Invited Audience
Undergraduate students, Faculty/Staff, Graduate students
Categories
Seminar/Lecture/Colloquium
Keywords
Joseph Ford Lecture
Status
  • Created By: Alison Morain
  • Workflow Status: Published
  • Created On: Nov 11, 2015 - 4:57am
  • Last Updated: Apr 13, 2017 - 5:17pm