Dokument: Emergent memory from tapping collisions in active granular matter
| Titel: | Emergent memory from tapping collisions in active granular matter | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=67709 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20241126-110117-8 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Caprini, Lorenzo [Autor] Ldov, Anton [Autor] Gupta, Rahul Kumar [Autor] Ellenberg, Hendrik [Autor] Wittmann, René [Autor] Löwen, Hartmut [Autor] Scholz, Christian [Autor] | |||||||
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| Beschreibung: | In an equilibrium thermal environment, random elastic collisions between background particles and a tracer establish the picture of Brownian motion fulfilling the celebrated Einstein relation between diffusivity and mobility. However, extensions of the Einstein relation to link dissipation, fluctuations, and nonequilibrium dynamical mechanisms in active matter systems are still debated. Here, we investigate experimentally the impact of an active background on a passive tracer using vibrationally excited active particles, that result in multiple correlated tapping collisions with the tracer, for which a persistent memory emerges in the dynamics. The system is described by a generalized active Einstein relation that constrains fluctuations, dissipation, and effective activity, by taking the emerging tracer memory into account. Since the resulting persistence can largely be tuned by the environmental density and motility, our findings can be useful to engineer properties of various active systems in biomedical applications, microfluidics, chemical engineering, or swarm robotics. | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
Caprini, L., Ldov, A., Gupta, R., Ellenberg, H., Wittmann, R., Löwen, H., & Scholz, C. (2024). Emergent memory from tapping collisions in active granular matter. Communications Physics, 7, Article 52. https://doi.org/10.1038/s42005-024-01540-w | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät | |||||||
| Dokument erstellt am: | 26.11.2024 | |||||||
| Dateien geändert am: | 26.11.2024 |
