Giacomo Bartolucci (he)
@gbart.bsky.social
https://giacobarto.github.io/
I love biophysics, jazz, poetry, and activism, especially when mixed together!
Into phase separation, and active nematics.
JdC postdoc at University of Barcelona, previously at MPI PKS Dresden and Uni Augsburg
I love biophysics, jazz, poetry, and activism, especially when mixed together!
Into phase separation, and active nematics.
JdC postdoc at University of Barcelona, previously at MPI PKS Dresden and Uni Augsburg
Thanks a lot Chris and all the Augsburg crew 🥹🥹
September 22, 2025 at 2:28 PM
Thanks a lot Chris and all the Augsburg crew 🥹🥹
Finally, we move to the opposite limit: fast reactions!
We observe spirals of droplets, but, perhaps surprisingly, phase equilibrium still holds on the mesoscale. Indeed, local averages show that the concentrations in and outside of drops still lie on the binodal manifold!
We observe spirals of droplets, but, perhaps surprisingly, phase equilibrium still holds on the mesoscale. Indeed, local averages show that the concentrations in and outside of drops still lie on the binodal manifold!
August 1, 2025 at 8:35 AM
Finally, we move to the opposite limit: fast reactions!
We observe spirals of droplets, but, perhaps surprisingly, phase equilibrium still holds on the mesoscale. Indeed, local averages show that the concentrations in and outside of drops still lie on the binodal manifold!
We observe spirals of droplets, but, perhaps surprisingly, phase equilibrium still holds on the mesoscale. Indeed, local averages show that the concentrations in and outside of drops still lie on the binodal manifold!
This framework even allows for a new kind of stability analysis of an inhomogeneous state 🥹
August 1, 2025 at 8:32 AM
This framework even allows for a new kind of stability analysis of an inhomogeneous state 🥹
By imposing timescale separation between slow reactions and fast diffusion, we define a dynamics at phase equilibrium.
We exploit it to study the effects of localisation of B and C in the A-rich and A-poor phases, showing dampening and amplification of the oscillations.
We exploit it to study the effects of localisation of B and C in the A-rich and A-poor phases, showing dampening and amplification of the oscillations.
August 1, 2025 at 8:30 AM
By imposing timescale separation between slow reactions and fast diffusion, we define a dynamics at phase equilibrium.
We exploit it to study the effects of localisation of B and C in the A-rich and A-poor phases, showing dampening and amplification of the oscillations.
We exploit it to study the effects of localisation of B and C in the A-rich and A-poor phases, showing dampening and amplification of the oscillations.
As expected, we see a periodic emergence of droplets:
August 1, 2025 at 8:23 AM
As expected, we see a periodic emergence of droplets:
The model:
Cahn–Hilliard dynamics for three solutes and a solvent, where the three solutes (ABC) convert into each other according to the Rock-Paper-Scissors (RPS) reaction network.
We break the symmetry and let A drive phase separation while B, C can localize in the A-rich or A-poor phase.
Cahn–Hilliard dynamics for three solutes and a solvent, where the three solutes (ABC) convert into each other according to the Rock-Paper-Scissors (RPS) reaction network.
We break the symmetry and let A drive phase separation while B, C can localize in the A-rich or A-poor phase.
August 1, 2025 at 8:19 AM
The model:
Cahn–Hilliard dynamics for three solutes and a solvent, where the three solutes (ABC) convert into each other according to the Rock-Paper-Scissors (RPS) reaction network.
We break the symmetry and let A drive phase separation while B, C can localize in the A-rich or A-poor phase.
Cahn–Hilliard dynamics for three solutes and a solvent, where the three solutes (ABC) convert into each other according to the Rock-Paper-Scissors (RPS) reaction network.
We break the symmetry and let A drive phase separation while B, C can localize in the A-rich or A-poor phase.