65 citations · 214 across the 18 of their papers we have counts for
19 papers
Microscopic theory of soft run-and-tumble particles
Rosalba Garcia-Millan, Ziluo Zhang, Luca Cocconi +4
Soft, repulsive run-and-tumble particles display emergent effective interactions as they appear to stick to each other in spite of the absence of attractive forces. This effective…
Effective attraction by repulsion
Rosalba Garcia-Millan, Luca Cocconi, Ziluo Zhang +4
Repulsive self-propelled particles tend to cluster, leading to Motility-Induced Phase Separation (MIPS). By analogy with equilibrium phase separation, the onset of MIPS has been as…
Quo vadis, stochastic thermodynamics?
Jan Korbel, Artemy Kolchinsky, Sarah A. M. Loos +4
Stochastic thermodynamics is a framework for describing non-equilibrium processes at the level of fluctuating trajectories, where the state of a system evolves as a stochastic time…
Active particles in moving traps: minimum work protocols and information efficiency of work extraction
Janik Schüttler, Rosalba Garcia-Millan, Michael E. Cates +1
We revisit the elementary problem of moving a particle in a harmonic trap in finite time with minimal work cost, and extend it to the case of an active particle. By comparing the G…
Optimal closed-loop control of active particles and a minimal information engine
Rosalba Garcia-Millan, Janik Schüttler, Michael E. Cates +1
We study the elementary problem of moving an active particle by a trap with minimum work input. We show analytically that (open-loop) optimal protocols are not affected by activity…
Towards a liquid-state theory for active matter
Yuting Irene Li, Rosalba Garcia-Millan, Michael E. Cates +1
In equilibrium, the collective behaviour of particles interacting via steep, short-ranged potentials is well captured by the virial expansion of the free energy at low density. Her…
Field theories of active particle systems and their entropy production
Gunnar Pruessner, Rosalba Garcia-Millan
Active particles that translate chemical energy into self-propulsion can maintain a far-from-equilibrium steady state and perform work. The entropy production measures how far from…
Entropy production of non-reciprocal interactions
Ziluo Zhang, Rosalba Garcia-Millan
Non-reciprocal interactions are present in many systems out of equilibrium. The rate of entropy production is a measure that quantifies the time irreversibility of a system, and th…
Noise can lead to exponential epidemic spreading despite below one
Johannes Pausch, Rosalba Garcia-Millan, Gunnar Pruessner
Branching processes are widely used to model evolutionary and population dynamics as well as the spread of infectious diseases. To characterize the dynamics of their growth or spre…
Run-and-tumble motion: field theory and entropy production
Rosalba Garcia-Millan, Gunnar Pruessner
Run-and-tumble motion is an example of active motility where particles move at constant speed and change direction at random times. In this work we study run-and-tumble motion with…
Entropy production in exactly solvable systems
Luca Cocconi, Rosalba Garcia-Millan, Zigan Zhen +2
The rate of entropy production by a stochastic process quantifies how far it is from thermodynamic equilibrium. Equivalently, entropy production captures the degree to which detail…
Time-dependent branching processes: a model of oscillating neuronal avalanches
Johannes Pausch, Rosalba Garcia-Millan, Gunnar Pruessner
Recently, neuronal avalanches have been observed to display oscillations, a phenomenon regarded as the co-existence of a scale-free behaviour (the avalanches close to criticality)…
The Concealed Voter Model is in the Voter Model universality class
Rosalba Garcia-Millan
The Concealed Voter Model (CVM) is an extension of the original Voter Model, where two different opinions compete until consensus is reached. In the CVM, agents express an opinion…
Volume explored by a branching random walk on general graphs
Ignacio Bordeu, Saoirse Amarteifio, Rosalba Garcia-Millan +3
Branching processes are used to model diverse social and physical scenarios, from extinction of family names to nuclear fission. However, for a better description of natural phenom…
Field-theoretic approach to the universality of branching processes
Rosalba Garcia-Millan, Johannes Pausch, Benjamin Walter +1
Branching processes are widely used to model phenomena from networks to neuronal avalanching. In a large class of continuous-time branching processes, we study the temporal scaling…
Phase transition, scaling of moments, and order-parameter distributions in Brownian particles and branching processes with finite-size effects
Alvaro Corral, Rosalba Garcia-Millan, Nicholas R. Moloney +1
We revisit the problem of Brownian diffusion with drift in order to study finite-size effects in the geometric Galton-Watson branching process. This is possible because of an exact…
Correlations and hyperuniformity in the avalanche size of the Oslo Model
Rosalba Garcia-Millan, Gunnar Pruessner, Luke Pickering +1
Certain random processes display anticorrelations resulting in local Poisson-like disorder and global order, where correlations suppress fluctuations. Such processes are called hyp…
Exact derivation of a finite-size-scaling law and corrections to scaling in the geometric Galton-Watson process
Alvaro Corral, Rosalba Garcia-Millan, Francesc Font-Clos
The theory of finite-size scaling explains how the singular behavior of thermodynamic quantities in the critical point of a phase transition emerges when the size of the system bec…
Finite-size scaling of survival probability in branching processes
Rosalba Garcia-Millan, Francesc Font-Clos, Alvaro Corral
Branching processes pervade many models in statistical physics. We investigate the survival probability of a Galton-Watson branching process after a finite number of generations. W…