5 papers
An agitated oscillator chain
Aaron Beyen, Christian Maes, Ion Santra
We study how the stationary dynamics of an oscillator chain is modified when coupled to a bath of run-and-tumble particles. First, assuming time-scale separation, we derive the ind…
Negative Differential Heat Conductivity in a Harmonic Chain Coupled to a Particle Reservoir
Simon Krekels, Christian Maes, Ion Santra +1
When coupling thermal baths at different temperatures, negative differential thermal conductivity is typically attributed to nonlinear interactions in the connecting medium. In thi…
Relaxation to nonequilibrium
Christian Maes, Karel NetoÄný
We describe the structure of relaxation for a steadily driven macroscopic body. The time-evolution is characterized as the zero-cost flow for a nonequilibrium and nonlinear extensi…
Transfer of active motion from medium to probe via the induced friction and noise
Ji-Hui Pei, Christian Maes
Can activity be transmitted from smaller to larger scales? We report on such a transfer from a homogeneous active medium to a Newtonian spherical probe. The active medium consists…
Coupling an elastic string to an active bath: the emergence of inverse damping
Aaron Beyen, Christian Maes, Ji-Hui Pei
We consider a slow elastic string with Klein-Gordon dynamics coupled to a bath of run-and-tumble particles. We derive and solve the induced Langevin-Klein-Gordon string dynamics wi…