Quorum-sensing active particles with discontinuous motility
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- Andreas Fischer
- Friederike Schmid
- Thomas Speck
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000505993400002&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1103/PhysRevE.101.012601
- eISSN
- 2470-0053
- Externe Identifier
- Clarivate Analytics Document Solution ID: KA7QQ
- PubMed Identifier: 32069622
- ISSN
- 2470-0045
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- PHYSICAL REVIEW E
- Artikelnummer
- ARTN 012601
- Datum der Veröffentlichung
- 2020
- Status
- Published
- Titel
- Quorum-sensing active particles with discontinuous motility
- Sub types
- Article
- Ausgabe der Zeitschrift
- 101
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Autoren
- Andreas Fischer
- Friederike Schmid
- Thomas Speck
- DOI
- 10.1103/physreve.101.012601
- eISSN
- 2470-0053
- ISSN
- 2470-0045
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- Physical Review E
- Sprache
- en
- Artikelnummer
- 012601
- Online publication date
- 2020
- Status
- Published online
- Herausgeber
- American Physical Society (APS)
- Herausgeber URL
- http://dx.doi.org/10.1103/physreve.101.012601
- Datum der Datenerfassung
- 2020
- Titel
- Quorum-sensing active particles with discontinuous motility
- Ausgabe der Zeitschrift
- 101
Data source: Crossref
- Abstract
- We develop a dynamic mean-field theory for polar active particles that interact through a self-generated field, in particular one generated through emitting a chemical signal. While being a form of chemotactic response, it is different from conventional chemotaxis in that particles discontinuously change their motility when the local concentration surpasses a threshold. The resulting coupled equations for density and polarization are linear and can be solved analytically for simple geometries, yielding inhomogeneous density profiles. Specifically, here we consider a planar and circular interface. Our theory thus explains the observed coexistence of dense aggregates with an active gas. There are, however, differences from the more conventional picture of liquid-gas coexistence based on a free energy, most notably the absence of a critical point. We corroborate our analytical predictions by numerical simulations of active particles under confinement and interacting through volume exclusion. Excellent quantitative agreement is reached through an effective translational diffusion coefficient. We finally show that an additional response to the chemical gradient direction is sufficient to induce vortex clusters. Our results pave the way to engineer motility responses in order to achieve aggregation and collective behavior even at unfavorable conditions.
- Addresses
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7-9, 55128 Mainz, Germany.
- Autoren
- Andreas Fischer
- Friederike Schmid
- Thomas Speck
- DOI
- 10.1103/physreve.101.012601
- eISSN
- 2470-0053
- Externe Identifier
- PubMed Identifier: 32069622
- Funding acknowledgements
- Deutsche Forschungsgemeinschaft: 254473714
- Open access
- false
- ISSN
- 2470-0045
- Ausgabe der Veröffentlichung
- 1-1
- Zeitschrift
- Physical review. E
- Sprache
- eng
- Medium
- Paginierung
- 012601
- Datum der Veröffentlichung
- 2020
- Status
- Published
- Datum der Datenerfassung
- 2020
- Titel
- Quorum-sensing active particles with discontinuous motility.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 101
Data source: Europe PubMed Central
- Abstract
- We develop a dynamic mean-field theory for polar active particles that interact through a self-generated field, in particular one generated through emitting a chemical signal. While being a form of chemotactic response, it is different from conventional chemotaxis in that particles discontinuously change their motility when the local concentration surpasses a threshold. The resulting coupled equations for density and polarization are linear and can be solved analytically for simple geometries, yielding inhomogeneous density profiles. Specifically, here we consider a planar and circular interface. Our theory thus explains the observed coexistence of dense aggregates with an active gas. There are, however, differences from the more conventional picture of liquid-gas coexistence based on a free energy, most notably the absence of a critical point. We corroborate our analytical predictions by numerical simulations of active particles under confinement and interacting through volume exclusion. Excellent quantitative agreement is reached through an effective translational diffusion coefficient. We finally show that an additional response to the chemical gradient direction is sufficient to induce vortex clusters. Our results pave the way to engineer motility responses in order to achieve aggregation and collective behavior even at unfavorable conditions.
- Autoren
- Andreas Fischer
- Friederike Schmid
- Thomas Speck
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/32069622
- DOI
- 10.1103/PhysRevE.101.012601
- eISSN
- 2470-0053
- Ausgabe der Veröffentlichung
- 1-1
- Zeitschrift
- Phys Rev E
- Sprache
- eng
- Country
- United States
- Paginierung
- 012601
- Datum der Veröffentlichung
- 2020
- Status
- Published
- Titel
- Quorum-sensing active particles with discontinuous motility.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 101
Data source: PubMed
- Abstract
- We develop a dynamic mean-field theory for polar active particles that interact through a self-generated field, in particular one generated through emitting a chemical signal. While being a form of chemotactic response, it is different from conventional chemotaxis in that particles discontinuously change their motility when the local concentration surpasses a threshold. The resulting coupled equations for density and polarization are linear and can be solved analytically for simple geometries, yielding inhomogeneous density profiles. Specifically, here we consider a planar and circular interface. Our theory thus explains the observed coexistence of dense aggregates with an active gas. There are, however, differences to the more conventional picture of liquid-gas coexistence based on a free energy, most notably the absence of a critical point. We corroborate our analytical predictions by numerical simulations of active particles under confinement and interacting through volume exclusion. Excellent quantitative agreement is reached through an effective translational diffusion coefficient. We finally show that an additional response to the chemical gradient direction is sufficient to induce vortex clusters. Our results pave the way to engineer motility responses in order to achieve aggregation and collective behavior even at unfavorable conditions.
- Autoren
- Andreas Fischer
- Friederike Schmid
- Thomas Speck
- Autoren-URL
- http://arxiv.org/abs/1909.12758v1
- Zeitschrift
- Phys. Rev. E
- Schlüsselwörter
- cond-mat.stat-mech
- cond-mat.stat-mech
- cond-mat.soft
- Paginierung
- 012601
- Datum der Veröffentlichung
- 2019
- Herausgeber URL
- http://dx.doi.org/10.1103/PhysRevE.101.012601
- Datum der Datenerfassung
- 2019
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2019
- Titel
- Quorum-sensing active particles with discontinuous motility
- Ausgabe der Zeitschrift
- 101
Files
1909.12758v1.pdf
Data source: arXiv
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