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Demian Levis

@demianlevis.bsky.social
125 followers 213 following 2 posts

Physicist at the University of Barcelona, head of @cuca-lab.bsky.social. Father of 3. Order, disorder, and all that. website: demianlevis.wordpress.com

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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 18/02/2026
EU DN "A Coherent Analysis Framework for Emergence in Biological Systems" (CAFE-BIO) is recruiting 15 PhDs in 12 institutions eg @ubics.bsky.social @ub.edu. #statphys for #bio and #complex problems. Gain international experience with academic and industry secondments. more info: cafe-bio.org
cafe-bio.org
CAFE-BIO
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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 15/12/2025
Our first experimental paper has just been published 🥳! We show that motorized toys are a great experimental model system to study chiral #activematter. Exact calculations reproducing experimental results with no fitting parameter @ubics.bsky.social journals.aps.org/pre/abstract...
journals.aps.org
Depinning and activated motion of chiral self-propelled particles
We study experimentally, numerically, and analytically, the dynamics of a chiral active particle (cm-sized robots), pulled at a constant translational velocity. We show that these robots can faithfull...
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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 02/12/2025
arxiv.org/abs/2512.00523
arxiv.org
Avalanches in active glasses with finite persistence
We numerically investigate the statistics of avalanches in glassy systems of active particles with finite persistence, with and without an externally applied shear. In departing from the infinite-pers...
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Reposted by Demian Levis
Olivia Guest · Ολίβια Γκεστ @olivia.science · 19/11/2025
I laughed at loud. These people are so pathetic; our enemies are numbskulls. They will kill us all and still not know hs physics. COWEN: The stupidest question possible: Why don’t we just make more GPUs? ALTMAN: Because we need to make more electrons. conversationswithtyler.com/episodes/sam...
COWEN: The stupidest question possible: Why don’t we just make more GPUs?

ALTMAN: Because we need to make more electrons.

COWEN: What’s stopping that? What’s the ultimate binding constraint?

ALTMAN: We’re working on it really hard.

COWEN: If you could have more of one thing to have more compute, what would the one thing be?

ALTMAN: Electrons.
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Reposted by Demian Levis
Laura Alvarez @lauraal.bsky.social · 19/06/2025
New prepint w/ @demianlevis.bsky.social @natxopago.bsky.social L. Isa and E.Sesé-Sansa. We study active binary mixtures to unveil how two populations of active colloids with different motilities interact with each other. Thanks for the great work!🥳 arxiv.org/abs/2506.15188
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Reposted by Demian Levis
Unitat de Cultura Científica i Innovació de la UB @ubdivulga.bsky.social · 16/05/2025
Hi ha ordre a la natura? 🍃 Si és així, quin és aquest ordre i com es manifesta? Ho descobrirem a la #FestaCiènciaUB amb l’ajuda de joguines robòtiques 🤖 web.ub.edu/ca/web/laubd... @cuca-lab.bsky.social @ubics.bsky.social
web.ub.edu
Com s'organitza el món? - La UB Divulga - UB
Taller de la XI Festa de la Ciència de la Universitat de Barcelona.
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Demian Levis @demianlevis.bsky.social · 07/05/2025
Check out our new work on #synchronization just published in #PhysRevLett.
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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 07/05/2025
🚨 New paper in PRL: journals.aps.org/prl/abstract... -> motion induces a topological phase transition in 2D systems of Kuramoto oscillators with random frequencies 🌀 w YRouzaire PRahmani FPeruani IPgagonabarraga @demianlevis.bsky.social @ubics.bsky.social @ub.edu #ComplexSystems #ActiveMatter
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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 24/04/2025
Published in #PhysRevLett! How nonreciprocity affects the behaviour of topological defects? they are reshaped, their annihilation can be enhanced or hindered, +1 -1 charges move differently. PhD work of YRouzaire @ub.edu @ubics.bsky.social with @demianlevis.bsky.social IPagonabarraga and DPearce.
journals.aps.org
Nonreciprocal Interactions Reshape Topological Defect Annihilation
We show how nonreciprocal ferromagnetic interactions between neighboring planar spins in two dimensions, affect the behavior of topological defects. Nonreciprocity is introduced by weighting the coupl...
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Demian Levis @demianlevis.bsky.social · 15/04/2025
What a great week! The 1st Barcelona School on non-equilibrium stat phys has been really successful. Thanks to C Calero, F Ritort, the students and all attendees sponsors and mostly, our 5 Lecturers. #statphys #bcnschoolneqstatphys
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Reposted by Demian Levis
Ezequiel Ferrero @ezeferrero.bsky.social · 11/03/2025
🚨Open call: Simons-Balseiro postdoctoral positions in Bariloche, Argentina 🇦🇷 ➡️ On theoretical physics, broadly defined ➡️ Better salary than most researchers 🤯 Deadline: April 10th 2025 If interested in applying on condensed matter, let us know! 👇 www.cond-mat-bariloche.org/2025/03/11/s...
cond-mat-bariloche.org
SIMONS-BALSEIRO POSTDOCTORAL POSITIONS – Condensed Matter Theory Group
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LunaLuvgood2020 @lunaluvgood2020.bsky.social · 07/03/2025
www.cnn.com/2025/03/07/u... Trump administration cancels $400M in grants and contracts with Columbia University “I love the poorly educated”
cnn.com
Trump administration cancels $400M in grants and contracts with Columbia University | CNN
The Trump administration said Friday that it’s pulling $400 million from Columbia University, canceling grants and contracts because of what the government describes as the Ivy League school’s failure...
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Reposted by Demian Levis
The Guardian @theguardian.com · 14/02/2025
Two artists, one catastrophic war … Joe Sacco and Art Spiegelman on Israel-Gaza and the ceasefire – cartoon
theguardian.com
Two artists, one catastrophic war … Joe Sacco and Art Spiegelman on Israel-Gaza and the ceasefire – cartoon
What happens when two comics artists ‘meet on the page’ to explore the tragedies of the Israel-Gaza war? Art Spiegelman, best known for his Pulitzer prize-winning Holocaust memoir Maus, and Joe Sacco, author of bestselling graphic reportage Palestine, grapple with the ongoing crisis
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Reposted by Demian Levis
Nature @nature.com · 07/02/2025
Analysis of a festival uncovers collective rotational movements that emerge at critical densities, which could be universal go.nature.com/415fUif
go.nature.com
Crowds start to spin when their densities hit a threshold
Video footage of people at a festival reveals collective rotations.
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Reposted by Demian Levis
Computing and Understanding Collective Action (CUCA) Lab. @cuca-lab.bsky.social · 07/02/2025
The first paper of the Lab is on the cover of Soft Matter! @softmatter-journal.bsky.social pubs.rsc.org/en/Content/A... Collective motion of particles with an energy depot JPMIranda @demianlevis.bsky.social and @chantalvaleriani.bsky.social. #activematter #statmech
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Stefano Bo @bosste.bsky.social · 13/01/2025
I have an exciting opportunity for a PhD on the study of force sensing proteins www.findaphd.com/phds/project... The candidate will have the opportunity to perform experiments in the lab of Rafael Tapia-Rojo and develop theory and machine-learning approaches with me. Start date June 2025
findaphd.com
Machine learning the dynamics of force-sensing proteins at King’s College London on FindAPhD.com
PhD Project - Machine learning the dynamics of force-sensing proteins at King’s College London, listed on FindAPhD.com
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