Colloquium: Inclusions, boundaries, and disorder in scalar active matter

O Granek, Y Kafri, M Kardar, S Ro, J Tailleur… - Reviews of Modern …, 2024 - APS
Active systems are driven out of equilibrium by exchanging energy and momentum with their
environment. This endows them with anomalous mechanical properties that are reviewed in …

Exact position distribution of a harmonically confined run-and-tumble particle in two dimensions

NR Smith, P Le Doussal, SN Majumdar, G Schehr - Physical Review E, 2022 - APS
We consider an overdamped run-and-tumble particle in two dimensions, with self-propulsion
in an orientation that stochastically rotates by 90∘ at a constant rate, clockwise or …

Macroscopic fluctuation theory and current fluctuations in active lattice gases

T Agranov, S Ro, Y Kafri, V Lecomte - SciPost Physics, 2023 - scipost.org
We study the current large deviations for a lattice model of interacting active particles
displaying a motility-induced phase separation (MIPS). To do this, we first derive the exact …

Generalized disorder averages and current fluctuations in run and tumble particles

S Jose, A Rosso, K Ramola - Physical Review E, 2023 - APS
We present exact results for the fluctuations in the number of particles crossing the origin up
to time t in a collection of noninteracting run and tumble particles in one dimension. In …

Nonequilibrium steady state for harmonically confined active particles

NR Smith, O Farago - Physical Review E, 2022 - APS
We study the full nonequilibrium steady-state distribution P st (X) of the position X of a
damped particle confined in a harmonic trap** potential and experiencing active noise …

Large deviations in statistics of the local time and occupation time for a run and tumble particle

S Mukherjee, P Le Doussal, NR Smith - Physical Review E, 2024 - APS
We investigate the statistics of the local time T=∫ 0 T δ (x (t)) dt that a run and tumble
particle (RTP) x (t) in one dimension spends at the origin, with or without an external drift. By …

Entropy production and its large deviations in an active lattice gas

T Agranov, ME Cates, RL Jack - Journal of Statistical Mechanics …, 2022 - iopscience.iop.org
Active systems are characterized by a continuous production of entropy at steady state. We
study the statistics of entropy production within a lattice-based model of interacting active …

Tricritical behavior in dynamical phase transitions

T Agranov, ME Cates, RL Jack - Physical Review Letters, 2023 - APS
We identify a new scenario for dynamical phase transitions associated with time-integrated
observables occurring in diffusive systems described by the macroscopic fluctuation theory …

Large deviations in the symmetric simple exclusion process with slow boundaries: A hydrodynamic perspective

S Saha, T Sadhu - SciPost Physics, 2024 - scipost.org
We revisit the one-dimensional model of the symmetric simple exclusion process slowly
coupled with two unequal reservoirs at the boundaries. In its non-equilibrium stationary …

Nonequilibrium steady state of trapped active particles

NR Smith - Physical Review E, 2023 - APS
We consider an overdamped particle with a general physical mechanism that creates noisy
active movement (eg, a run-and-tumble particle or active Brownian particle, etc.), that is …