New preprint!
https://t.co/Pat9h2yS2R
This is a perspective article by Takeuchi and Nishiguchi, about various phases of active matter in bacterial populations. We briefly overview active gas, liquid, glass and nematic states seen in bacteria and give a few future perspectives.
We believe our method is useful not only for proposing a new equation in theoretical physics, but also for data-driven approaches as a preprocessing step to narrow down candidate terms.
Achievement due to a brilliant idea and impressive theoretical creativity of Junya. Congrats!
New preprint!
https://t.co/llG9HGPf6a
When writing down a governing equation as PDE, one needs to select terms satisfying given symmetries. This task, often done manually, is now formulated as a linear algebra problem, allowing us to generate a list of terms algorithmically!
With the start of a new academic year, a new postdoc Vaibhav R. S. Parmar, and new students Yuhao Cao & Shusuke Takae joined us! Also a new intern Xuan Tu joined last month. Welcome!
https://t.co/fFJF9KNNUR
We also showed that, through device design, we can change the distribution of produced colanic acid!
This is a great achievement by our former postdoc Fumi Yokoyama @Bunshu23. He carried it out in the lab as his main project, which he designed himself. Congratulations!!
New preprint!
https://t.co/nT7QGlTKjk
Bacterial colonies are known to develop nematic order. We found that topological defects therein can even induce a genetic expression! It produces an important component of biofilm extracellular matrix, colanic acid.
New KAKENHI project, "Dynamical Materials Science," involving nearly 30 PIs in Japan, will start soon! Takeuchi is the director and leads one of the scientific projects.
https://t.co/6foavwRGbi.
You can also follow English updates on Bluesky:
https://t.co/ZT3jTIidAd
New preprint!
https://t.co/rguKjWoa6V
1D KPZ class has been studied extensively by exact solutions, but many of them were about typical fluctuations. Here we studied KPZ large deviations numerically, by a method called population dynamics algorithm. Congrats Yuta!
New preprint!
https://t.co/KWIPRcyrnF
We realized topological transport in bacterial active matter, via microfabricated geometric structures. Besides edge localization and transport of bacteria, we also captured its topological origin thru modeling. Congrats Yoshi!
There are people who go, but also people who come. Today a new student, Changle Liao, joined us and reboots the project he initiated during his internship. Also, a new intern from France, Félix, joined us 2 weeks ago. 2 new students from April also visited us. A lot of new wind!
Our former postdoc, Yokoyama-san, has just joined OIST in Okinawa, Japan and started his independent group. Congrats again! We are proud of you, and the creativities of the members you appreciated in the post!
Flying to Okinawa. A huge thx u to my colleagues & their families/partners. I’ve learned so much in physics & also reflected deeply on biology. Considering my goal as a postdoc, my interdisciplinary journey has helped me shape my own science. I’ll be back & have a party together!
I’m stoked to announce my next position, Buribushi Fellow (research-focused position), to start my own group as a PI at OIST in Okinawa, Japan from October.
https://t.co/CveCQ3HJ3N
A new academic year has started in Japan, with two newcomers in the lab: Dr. Go Takayama (postdoc) and Mr. Shogo Ito (Master’s course student). Welcome!
The 2nd preprint of today:
https://t.co/vzFLSEpYME
By large-scale experiments, numerics & analytic theory, we clarified how collective motion of dense bacterial suspensions transitions from a stable vortex under strong confinement to active turbulence as confinement is weakened.
Published in Soft Matter!
https://t.co/VxbNhvmlGL
Fumi Yokoyama @Bunshu23 became a coauthor due to his significant contributions to the additional experiments.
2 new preprints! The 1st one
https://t.co/JKwlitNJMh
is about the finding that starving bacteria form bundles akin to smectic liquid crystal. We quantified the smectic order by ML-based image analysis and discussed the relevance of extracellular substances & growth arrest.
Preprint major update!
https://t.co/8UrxwL3ToE
With Kazuaki Takasan who joined as a coauthor, we added simulations of the quantum Heisenberg model and confirmed the partial emergence of KPZ in integrable isotropic spin chains, in such a quantum model too!
Takeuchi’s News & Views article published in Nature Physics.
“Spinning into new regimes”
https://t.co/KiCrry378c
It’s about an inspiring achievement of synthetic active matter exp’t at intermediate Re number, by Mike Shelley, William Irvine & co
https://t.co/riKPHtnu51
Congrats!
Article featuring Samuel's work has just been published online in IOP Physics World!
"Squishy silicone rings shine a spotlight on fluid-solid transition"
https://t.co/ogfM4wXTQW
by @annademming
Many thanks to Anna, & also to Jonathan Barés & Christopher Chen for their comments!
Published in PNAS
https://t.co/cBCk6xdtsW
& press released!
https://t.co/1v9zUlOrNF
“Researchers uncover what makes large numbers of “squishy” grains start flowing”