4 papers
Reply to "Comment on "Velocity and Speed Correlations in Hamiltonian Flocks"
Mathias Casiulis, Marco Tarzia, Leticia F. Cugliandolo +1
In their comment on our work (ArXiv:1912.07056v1), Cavagna \textit{et al.} raise several interesting points on the phenomenology of flocks of birds, and conduct additional data ana…
Velocity and Speed Correlations in Hamiltonian Flocks
Mathias Casiulis, Marco Tarzia, Leticia F. Cugliandolo +1
We study a Hamiltonian fluid made of particles carrying spins coupled to their velocities. At low temperatures and intermediate densities, this conservative system exhibits ph…
Order by disorder: saving collective motion from topological defects in a conservative model
Mathias Casiulis, Marco Tarzia, Leticia F. Cugliandolo +1
Using analytic and numerical methods, we study a Hamiltonian model of interacting particles carrying ferro-magnetically coupled continuous spins which are also locally coupled…
Ferromagnetism-induced Phase Separation in a Two-dimensional Spin Fluid
Mathias Casiulis, Marco Tarzia, Leticia F. Cugliandolo +1
We study the liquid-gas phase separation observed in a system of repulsive particles dressed with ferromagnetically aligning spins, a so-called `spin fluid'. Microcanonical ensembl…