Haicen Yue
@haicenbiophy.bsky.social
Physics Department, University of Vermont
Living soft matter and biophysics, collective cell migration.
My Group: https://site.uvm.edu/hyue/
Living soft matter and biophysics, collective cell migration.
My Group: https://site.uvm.edu/hyue/
Bad news, but maybe not! In complex systems that are mostly passive -- like soils with ants -- we can’t simply ignore those active components due to their small fraction! Even a small fraction of active particles can strongly influence the whole system’s behavior! 🐜 (4/4)
October 17, 2025 at 2:01 AM
Bad news, but maybe not! In complex systems that are mostly passive -- like soils with ants -- we can’t simply ignore those active components due to their small fraction! Even a small fraction of active particles can strongly influence the whole system’s behavior! 🐜 (4/4)
If the “active energy” per particle is fixed, more active particles naturally fluidize the system more. But the effect is highly non-linear: beyond a threshold of number fraction (~30% in our case), adding more active dopants barely helps. Great news: we can save energy and resources! ⚡(3/4)
October 17, 2025 at 1:56 AM
If the “active energy” per particle is fixed, more active particles naturally fluidize the system more. But the effect is highly non-linear: beyond a threshold of number fraction (~30% in our case), adding more active dopants barely helps. Great news: we can save energy and resources! ⚡(3/4)
When the total “active energy” input is fixed, steady shear rheology barely changes whether energy is injected uniformly or via a small fraction of active dopants. See how the data collapse over a broad range! Beyond some range, heterogeneity does play a role … stay tuned for our next paper 😊 (2/4)
October 17, 2025 at 1:55 AM
When the total “active energy” input is fixed, steady shear rheology barely changes whether energy is injected uniformly or via a small fraction of active dopants. See how the data collapse over a broad range! Beyond some range, heterogeneity does play a role … stay tuned for our next paper 😊 (2/4)
It’s known that activity can act like an “effective temperature,” fluidizing glassy systems. But unlike temperature, activity can be tuned per particle. So, what happens if only a small fraction are active? How do these “active dopants” alter shear rheology and glass transition? (1/4)
October 17, 2025 at 1:53 AM
It’s known that activity can act like an “effective temperature,” fluidizing glassy systems. But unlike temperature, activity can be tuned per particle. So, what happens if only a small fraction are active? How do these “active dopants” alter shear rheology and glass transition? (1/4)