English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Collections of self-propelled particles that move persistently bycontinuously consuming free energy are a paradigmatic example of active matter.In these systems, unlike Brownian "hot colloids", the breakdown of detailedbalance yields a continuous production of entropy at steady state, even for anideal active gas. We quantify the irreversibility for a non-interacting activeparticle in two dimensions by treating both conjugated and time-reverseddynamics. By starting with underdamped dynamics, we identify a hidden rate ofentropy production required to maintain persistence and prevent the rapidlyrelaxing momenta from thermalizing, even in the limit of very large friction.Additionally, comparing two popular models of self-propulsion with identicaldissipation on average, we find that the fluctuations and large deviations inwork done are markedly different, providing thermodynamic insight into thevarying extents to which macroscopically similar active matter systems maydepart from equilibrium.

Hidden entropy production and work fluctuations in an ideal active gas