Collective behavior of Vicsek particles without and with obstacles
. In our work we have studied a two-dimensional suspension of finite-size Vicsek hard disks, whose time evolution follows an event-driven dynamics between subsequent time steps. Having compared its collective behaviour with the one expected for a system of scalar Vicsek point-like particles, we have...
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| Veröffentlicht in: | The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2018-08, Vol.41 (8), p.91-11, Article 91 |
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| container_title | The European physical journal. E, Soft matter and biological physics |
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| creator | Martinez, Raul Alarcon, Francisco Rodriguez, Diego Rogel Aragones, Juan Luis Valeriani, Chantal |
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In our work we have studied a two-dimensional suspension of finite-size Vicsek hard disks, whose time evolution follows an event-driven dynamics between subsequent time steps. Having compared its collective behaviour with the one expected for a system of scalar Vicsek point-like particles, we have analysed the effect of considering two possible bouncing rules between the disks: a Vicsek-like rule and a pseudo-elastic one, focusing on the order-disorder transition. Next, we have added to the two-dimensional suspension of hard-disk Vicsek particles disk-like passive obstacles of two types: either fixed in space or moving according to the same event-driven dynamics. We have performed a detailed analysis of the particles’ collective behaviour observed for both fixed and moving obstacles. In the fixed obstacles case, we have observed formation of clusters at low noise, in agreement with previous studies. When using moving passive obstacles, we found that that order of active particles is better destroyed as the drag of obstacles increases. In the no drag limit an interesting result was found: introduction of low drag passive particles can lead in some cases to a more ordered state of active flocking particles than what they show in bulk.
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| doi_str_mv | 10.1140/epje/i2018-11706-8 |
| format | Article |
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In our work we have studied a two-dimensional suspension of finite-size Vicsek hard disks, whose time evolution follows an event-driven dynamics between subsequent time steps. Having compared its collective behaviour with the one expected for a system of scalar Vicsek point-like particles, we have analysed the effect of considering two possible bouncing rules between the disks: a Vicsek-like rule and a pseudo-elastic one, focusing on the order-disorder transition. Next, we have added to the two-dimensional suspension of hard-disk Vicsek particles disk-like passive obstacles of two types: either fixed in space or moving according to the same event-driven dynamics. We have performed a detailed analysis of the particles’ collective behaviour observed for both fixed and moving obstacles. In the fixed obstacles case, we have observed formation of clusters at low noise, in agreement with previous studies. When using moving passive obstacles, we found that that order of active particles is better destroyed as the drag of obstacles increases. In the no drag limit an interesting result was found: introduction of low drag passive particles can lead in some cases to a more ordered state of active flocking particles than what they show in bulk.
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In our work we have studied a two-dimensional suspension of finite-size Vicsek hard disks, whose time evolution follows an event-driven dynamics between subsequent time steps. Having compared its collective behaviour with the one expected for a system of scalar Vicsek point-like particles, we have analysed the effect of considering two possible bouncing rules between the disks: a Vicsek-like rule and a pseudo-elastic one, focusing on the order-disorder transition. Next, we have added to the two-dimensional suspension of hard-disk Vicsek particles disk-like passive obstacles of two types: either fixed in space or moving according to the same event-driven dynamics. We have performed a detailed analysis of the particles’ collective behaviour observed for both fixed and moving obstacles. In the fixed obstacles case, we have observed formation of clusters at low noise, in agreement with previous studies. When using moving passive obstacles, we found that that order of active particles is better destroyed as the drag of obstacles increases. In the no drag limit an interesting result was found: introduction of low drag passive particles can lead in some cases to a more ordered state of active flocking particles than what they show in bulk.
Graphical abstract</description><subject>Advances in Computational Methods for Soft Matter Systems</subject><subject>Biological and Medical Physics</subject><subject>Biophysics</subject><subject>Complex Fluids and Microfluidics</subject><subject>Complex Systems</subject><subject>Condensed matter physics</subject><subject>Disks</subject><subject>Drag</subject><subject>Low noise</subject><subject>Moving obstacles</subject><subject>Nanotechnology</subject><subject>Order-disorder transformations</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Polymer Sciences</subject><subject>Regular Article</subject><subject>Soft and Granular Matter</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><issn>1292-8941</issn><issn>1292-895X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EoqXwBxhQJBaWUJ-dOM4IFV9SJZYKsVlOcqEuaVzspIh_T9KWIjEw-aR73tenh5BzoNcAER3jaoFjwyjIECChIpQHZAgsZaFM49fD_RzBgJx4v6CUdjF-TAacAjAh2JDcTmxVYd6YNQYZzvXaWBfYMngxucf3YKVdY_IKffBpmrltm0DXxWYObOYb3a9OyVGpK49nu3dEZvd3s8ljOH1-eJrcTMOcJ3ETStSRgFjkpZZlyYqIx5BlNEIaMZ6UkeASOKZSiKLEQmdpHItCQMEzwTADPiJX29qVsx8t-kYtjc-xqnSNtvWKUZmyFBLJOvTyD7qwrau743pKJimLeU-xLZU7673DUq2cWWr3pYCqXrDqBauNYLURrGQXuthVt9kSi33kx2gH8C3gu1X9hu73739qvwEdA4eR</recordid><startdate>20180817</startdate><enddate>20180817</enddate><creator>Martinez, Raul</creator><creator>Alarcon, Francisco</creator><creator>Rodriguez, Diego Rogel</creator><creator>Aragones, Juan Luis</creator><creator>Valeriani, Chantal</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20180817</creationdate><title>Collective behavior of Vicsek particles without and with obstacles</title><author>Martinez, Raul ; Alarcon, Francisco ; Rodriguez, Diego Rogel ; Aragones, Juan Luis ; Valeriani, Chantal</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-8ea46156cfa8ff2d4351bb04e04237f463813e9866dfedab9556d61d3b62eb13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Advances in Computational Methods for Soft Matter Systems</topic><topic>Biological and Medical Physics</topic><topic>Biophysics</topic><topic>Complex Fluids and Microfluidics</topic><topic>Complex Systems</topic><topic>Condensed matter physics</topic><topic>Disks</topic><topic>Drag</topic><topic>Low noise</topic><topic>Moving obstacles</topic><topic>Nanotechnology</topic><topic>Order-disorder transformations</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Polymer Sciences</topic><topic>Regular Article</topic><topic>Soft and Granular Matter</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Martinez, Raul</creatorcontrib><creatorcontrib>Alarcon, Francisco</creatorcontrib><creatorcontrib>Rodriguez, Diego Rogel</creatorcontrib><creatorcontrib>Aragones, Juan Luis</creatorcontrib><creatorcontrib>Valeriani, Chantal</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The European physical journal. E, Soft matter and biological physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Martinez, Raul</au><au>Alarcon, Francisco</au><au>Rodriguez, Diego Rogel</au><au>Aragones, Juan Luis</au><au>Valeriani, Chantal</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Collective behavior of Vicsek particles without and with obstacles</atitle><jtitle>The European physical journal. E, Soft matter and biological physics</jtitle><stitle>Eur. Phys. J. E</stitle><addtitle>Eur Phys J E Soft Matter</addtitle><date>2018-08-17</date><risdate>2018</risdate><volume>41</volume><issue>8</issue><spage>91</spage><epage>11</epage><pages>91-11</pages><artnum>91</artnum><issn>1292-8941</issn><eissn>1292-895X</eissn><abstract>.
In our work we have studied a two-dimensional suspension of finite-size Vicsek hard disks, whose time evolution follows an event-driven dynamics between subsequent time steps. Having compared its collective behaviour with the one expected for a system of scalar Vicsek point-like particles, we have analysed the effect of considering two possible bouncing rules between the disks: a Vicsek-like rule and a pseudo-elastic one, focusing on the order-disorder transition. Next, we have added to the two-dimensional suspension of hard-disk Vicsek particles disk-like passive obstacles of two types: either fixed in space or moving according to the same event-driven dynamics. We have performed a detailed analysis of the particles’ collective behaviour observed for both fixed and moving obstacles. In the fixed obstacles case, we have observed formation of clusters at low noise, in agreement with previous studies. When using moving passive obstacles, we found that that order of active particles is better destroyed as the drag of obstacles increases. In the no drag limit an interesting result was found: introduction of low drag passive particles can lead in some cases to a more ordered state of active flocking particles than what they show in bulk.
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| subjects | Advances in Computational Methods for Soft Matter Systems Biological and Medical Physics Biophysics Complex Fluids and Microfluidics Complex Systems Condensed matter physics Disks Drag Low noise Moving obstacles Nanotechnology Order-disorder transformations Physics Physics and Astronomy Polymer Sciences Regular Article Soft and Granular Matter Surfaces and Interfaces Thin Films |
| title | Collective behavior of Vicsek particles without and with obstacles |
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