Time irreversibility in active matter, from micro to macro
Active matter encompasses systems whose individual constituents dissipate energy to exert
propelling forces on their environment. These systems exhibit dynamical phenomena with …
propelling forces on their environment. These systems exhibit dynamical phenomena with …
The physics of hearing: fluid mechanics and the active process of the inner ear
T Reichenbach, AJ Hudspeth - Reports on Progress in Physics, 2014 - iopscience.iop.org
Most sounds of interest consist of complex, time-dependent admixtures of tones of diverse
frequencies and variable amplitudes. To detect and process these signals, the ear employs …
frequencies and variable amplitudes. To detect and process these signals, the ear employs …
Symmetry, thermodynamics, and topology in active matter
The name active matter refers to any collection of entities that individually use free energy to
generate their own motion and forces. Through interactions, active particles spontaneously …
generate their own motion and forces. Through interactions, active particles spontaneously …
Derivation of the nonequilibrium generalized Langevin equation from a time-dependent many-body Hamiltonian
RR Netz - Physical Review E, 2024 - APS
It has become standard practice to describe systems that remain far from equilibrium even in
their steady state by Langevin equations with colored noise which is chosen independently …
their steady state by Langevin equations with colored noise which is chosen independently …
Emergent memory from tapping collisions in active granular matter
In an equilibrium thermal environment, random elastic collisions between background
particles and a tracer establish the picture of Brownian motion fulfilling the celebrated …
particles and a tracer establish the picture of Brownian motion fulfilling the celebrated …
A nonlinear fluctuation-dissipation test for Markovian systems
Fluctuation-dissipation relations (FDRs) connect the internal spontaneous fluctuations of a
system with its response to an external perturbation. In this work we propose a nonlinear …
system with its response to an external perturbation. In this work we propose a nonlinear …
Quantifying entropy production in active fluctuations of the hair-cell bundle from time irreversibility and uncertainty relations
We introduce lower bounds for the rate of entropy production of an active stochastic process
by quantifying the irreversibility of stochastic traces obtained from mesoscopic degrees of …
by quantifying the irreversibility of stochastic traces obtained from mesoscopic degrees of …
Fluctuation-dissipation relations for spiking neurons
B Lindner - Physical Review Letters, 2022 - APS
Spontaneous fluctuations and stimulus response are essential features of neural
functioning, but how they are connected is poorly understood. I derive fluctuation-dissipation …
functioning, but how they are connected is poorly understood. I derive fluctuation-dissipation …
Derivation of the non-equilibrium generalized Langevin equation from a generic time-dependent Hamiltonian
RR Netz - arXiv preprint arXiv:2310.00748, 2023 - arxiv.org
It has been become standard practice to describe steady-state non-equilibrium phenomena
by Langevin equations with colored noise and time-dependent friction kernels that do not …
by Langevin equations with colored noise and time-dependent friction kernels that do not …
Trapped tracer in a non-equilibrium bath: dynamics and energetics
We study the dynamics of a tracer that is elastically coupled to active particles being kept at
two different temperatures, as a prototype of tracer dynamics in a non-equilibrium bath …
two different temperatures, as a prototype of tracer dynamics in a non-equilibrium bath …