Emma Zajdela

Our discovery opens pathways for subsequent research: what are the origins of the phase chimera? what other states are yet to be discovered in this system of globally coupled identical oscillators? and, of course, do states such as this emerge in naturally occurring systems?

Proving the stability of the phase chimera state was its own journey, with detours including the consultation at the Sorbonne library in Paris, France of a 1997 PhD thesis which was not available digitally. Read more in the "historical notes" section of the supplementary material!

The story of this discovery started as many others do - by accident. While performing numerical simulations to investigate another question in this system, we came across a state that looked surprising at first and which we later identified as the "phase chimera state."

The Stuart-Landau system is still full of secrets waiting to be discovered. It is rich not only in its dynamics, but in its potential for beautiful visualizations. In fact, here is the winning image from the @aps-dsnp.bsky.social image of the month competition.

Since we posted the findings on arxiv in 2023, these states have already been found in higher-order systems: journals.aps.org/pre/abstract..., arxiv.org/abs/2506.12511, link.springer.com/article/10.1...
@physreve.bsky.social

Last, but certainly not least, the phase chimera state, which is obtained here from perturbing a two-cluster state

Next, the incoherent state, whose region of existence in the parameter space overlaps with the phase chimera, and is found under different initial conditions:

Just for fun (and visual pleasure), here are videos of several of the states. First up, chaos! More are available here: pubs.aip.org/aip/cha/arti...

The Stuart-Landau system of globally coupled, identical oscillators displays rich dynamics from synchrony to clusters, chimeras, and chaos, despite only having three parameters (yay, nonlinear dynamics!)

In this paper, we show the existence and stability of a new class of chimera states: the "phase chimera" and "multitailed phase chimera." These states, discovered in the Stuart-Landau system of identical, globally coupled oscillators, are frozen in a co-rotating frame.

Phase chimera states: Frozen patterns of disorder Coupled oscillators can serve as a testbed for larger questions of pattern formation across many areas of science and engineering. Much effort has been dedicate

Exciting news! I am delighted to announce that our paper "Phase Chimera States: Frozen Patterns of Disorder" was published in Chaos
@aip-publishing.bsky.social pubs.aip.org/aip/cha/arti...
@stevenstrogatz.com

I’m really thrilled to announce that I will join the University of British Columbia in September as an Assistant Professor in @ubcmath.bsky.social and @ubcmicroimmuno.bsky.social! Please get in touch if you might be interested in graduate studies or postdoctoral research opportunities!

Virtual Workshop on Modeling and Applications of Evolutionary Game Theory Date: Thursday, May 8, and Friday, May 9 Zoom link will be sent via email

If you are interested in participating in the workshop, please fill out the registration form available at the link below. The Zoom link for the meeting will be shared by email to all registered participants.
docs.google.com/forms/d/e/1F...

I am really happy to share information about the 2nd Workshop on Modeling and Applications of Evolutionary Game Theory, which will be held virtually on Thursday, May 8, and Friday, May 9.

sites.google.com/view/2nd-evo...

I enjoyed organizing this workshop with Olivia Chu and Alex McAvoy.

Join us on February 17th at 12:00pm EST for the next iteration of GSNP's klogW series featuring Stefano Boccaletti. Details and registration here: engage.aps.org/gsnp/resourc...

Regional and institutional trends in assessment for academic promotion - Nature Analysis of policies for promotion criteria to full professor from academic institutions and government agencies worldwide reveals considerable variation in assessment practices, particularly between ...

Professorship: A title earned by merit... or by metrics? 📈

This monumental study on @natureportfolio.nature.com dives into how institutions worldwide handle academic promotions!

What are your chances of going up that ladder? This study may certainly give you some ideas!

🔗 doi.org/10.1038/s415...

🚨 Calling all fans of statistical and nonlinear phenomena 🚨The APS Group on Statistical and Nonlinear Physics is now on Bluesky! Follow us here ➡️ ➡️ @aps-gsnp.bsky.social

Consider signing up for our short course on the Physics of Human Social Systems at the APS Global Summit!

Lectures by Luis Bettencourt and Jean-Philippe Bouchaud and tutorials by @mathemmatician.bsky.social and myself.

@apsphysics.bsky.social @aps-gsnp.bsky.social
summit.aps.org/events/MAR-S...

Join us for a short course on Physics of Human Social Systems at the APS Global Summit!

Our global study on the state of trust in scientists is now out in Nature Human Behaviour! 🥳

With a team of 241 researchers, we surveyed 71,922 people in 68 countries, providing the largest dataset on trust in scientists post-pandemic 👇🧵https://www.nature.com/articles/s41562-024-02090-5

Face-to-face or face-to-screen: A quantitative comparison of conferences modalities Abstract. The COVID-19 pandemic forced a societal shift from in-person to virtual activities, including scientific conferences. As society navigates a “new

Our latest research on collaboration at virtual and in-person conference is out! The study titled "Face-to-face or face-to-screen: A quantitative comparison of conferences modalities" was recently published in PNAS Nexus academic.oup.com/pnasnexus/ar...
@rescorp.org @andrewfeig.bsky.social