Felipe Barros

I'm happy to share with you my latest published paper in collaboration with @LastraFrancisca , @bioactivematter and Italo! This beautiful work came almost naturally to confirm our thoughts on the formation of vortical flows by confined active carpets! doi.org/10.1088/1361-6…

New paper in Philosophical Transactions A, with @Nonequilibrium_ at @Fisica_UBA @Exactas_UBA and Marc Brachet at @ENS_ULM: "The many faces of rotating quantum turbulence" doi.org/10.1098/rsta.2… Rotation changes everything. Especially in the quantum realm.

A 30-day experiment follows the flow of a high-viscosity liquid through a capillary tube, revealing persistent diffusive imbibition and testing how models that account for the dynamic contact angle perform in long-term imbibition processes. go.aps.org/4wyVFag

Ever wondered why some underwater bubbles are louder than others? 🫧 A Physical Review Fluids study shows a bubble's formation volume depends on its initial size and how quickly it forms — results that could improve methods to detect underwater gas leaks: go.aps.org/4g0YiLZ

Researchers have identified a temperature threshold where thermal fluctuations disrupt cooperative function in mechanical networks modeling protein allostery. They also demonstrated how tuning for thermal stability can improve robustness. Read more: go.aps.org/4xaKdBg

Most salamanders live in streams and under rocks or logs, but the wandering salamander has a high-flying lifestyle. These 13-centimeter-long amphibians spend much or all of their lives in coastal redwoods, some of the tallest trees in the world. In 2022, a laboratory study showed how they can descend by jumping, slowing their fall by spreading their limbs like a skydiver. Learn more: scim.ag/4eu73hs #ScienceMagArchives

プレオドリナはたくさんとれた

A new study reveals that particles in a strongly confined viscoelastic fluid form chains when a particle-scale Weissenberg number exceeds a critical threshold. “Shuttling" motion promotes collisions and self-organization. 🔗 go.aps.org/4bIjQdO

🦠Our new paper is out in Nature Ecology & Evolution. We show that increasing nutrient diversity can enhance microbial resource uptake, intensify competition, and ultimately reduce biodiversity. doi.org/10.1038/s41559…

Over a week ago, we published the following paper as a letter in @PhysRevE: "Topological transitions in swarmalators systems" journals.aps.org/pre/abstract/1… It was a pleasure to be part of this collaboration from @Fisica_UBA @Exactas_UBA, together with many colleagues:

A reverse sprinkler draws in fluid rather than ejecting it. The geometry of the reverse sprinkler’s arms drives its rotation: specifically, the flux in the angular momentum of the fluid being injected into the central hub of the sprinkler. In PNAS: ow.ly/268c50Zoa3J

Many active and driven systems exhibit non-reciprocal interactions, making them hard to describe with standard methods. Now a constrained Hamiltonian embedding with auxiliary variables reproduces these dynamics in model spin systems. nature.com/articles/s4156…

Bumble bees are hardly nature’s most graceful creatures, and their name reflects it. But it turns out these bees show a surprising knack for rhythm. The fuzzy insects can not only recognize a rhythm but also identify the same pattern when scientists change the tempo, according to recent research—the first time this ability has been documented outside of a few mammals and birds. Learn more: scim.ag/4vZuBk9 @NewsfromScience

Excited to release a review led by postdocs Pablo Bravo, @DharTanumoy, Eloise Masquelier, & PhD student Danielle Sclafani: arxiv.org/abs/2607.10734! We argue that studying the feedback between bacteria & soil is an exciting frontier for physics. 🌱🦠 Tweetorial follows... [1/5]

Using a minimal theory, researchers show how energy-consuming enzymes determine how active membrane domains form, persist, and coarsen — a framework for identifying key factors that control phase separation on membrane scaffolds. Read the study: go.aps.org/456Yova

A milestone for our young lab! 🎉 Honored to receive a 5-year NIH MIRA (R35) from the NIGMS to study how bacteria use molecular weapons to compete with one another, and how these interactions shape microbial communities . We're growing! Recruiting postdocs and research techs

Particles moving through crowded environments don't just navigate obstacles — they displace them. A "pushy random walk" model shows how these particle-induced rearrangements can fundamentally alter diffusion and transport in dense media in 1D and 2D. 🔗 go.aps.org/4fcLTTM

What governs the stability of vortex lattices in rotating flows? Embedding ideal triangular arrays of vortices into 3D turbulence shows that their lifetimes obey a memoryless random process, depending on the Rossby number and energetic balance. go.aps.org/3SWwXBO

A new paper investigates hyperuniformity in 2D jammed packings of frictionless bidisperse particles, and presents a more precise method to determine the hyperuniformity exponent. Read more: go.aps.org/44eg5ZD

Weak, random motility regulation can induce complex forms of self-organization in microbial communities. A new study shows that a phase transition leads to distinct, spatially segregated communities as the interaction network becomes more heterogeneous: go.aps.org/4p8PXZK

A vortex pair interacting with a localized polymeric fluid layer can generate secondary and tertiary vortices via polymer stress gradients. Elastic stresses modify vorticity production and energy transfer, with behaviors not seen in Newtonian fluids. go.aps.org/4gq88YC