Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution
The random arrest of the diffusion of a single particle and its return to its origin has served as the paradigmatic example of a large variety of processes undergoing stochastic resetting. While the implications and applications of stochastic resetting for a single particle are well understood, less...
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American Physical Society
2025-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/wz1y-hgnk |
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| author | Ron Vatash Yael Roichman |
| author_facet | Ron Vatash Yael Roichman |
| author_sort | Ron Vatash |
| collection | DOAJ |
| description | The random arrest of the diffusion of a single particle and its return to its origin has served as the paradigmatic example of a large variety of processes undergoing stochastic resetting. While the implications and applications of stochastic resetting for a single particle are well understood, less is known about the resetting of many interacting particles. In this study, we experimentally and numerically investigate a system of six colloidal particles undergoing two types of stochastic resetting protocols: global resetting, where all particles are returned to their origin simultaneously, and local resetting, where particles are reset one at a time. Our particles interact mainly through hard-core repulsion and hydrodynamic flows. We find that the most substantial effect of interparticle interactions is observed for local resetting, specifically when particles are physically dragged to the origin. In this case, hard-core repulsion broadens the steady-state distribution, while hydrodynamic interactions significantly narrow the distribution. The combination results in a steady-state distribution that is wider compared to that of a single-particle system for both global and local resetting protocols. |
| format | Article |
| id | doaj-art-6df523732d93468994d10046201d4a2a |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-6df523732d93468994d10046201d4a2a2025-08-20T03:31:45ZengAmerican Physical SocietyPhysical Review Research2643-15642025-07-0173L03202010.1103/wz1y-hgnkMany-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distributionRon VatashYael RoichmanThe random arrest of the diffusion of a single particle and its return to its origin has served as the paradigmatic example of a large variety of processes undergoing stochastic resetting. While the implications and applications of stochastic resetting for a single particle are well understood, less is known about the resetting of many interacting particles. In this study, we experimentally and numerically investigate a system of six colloidal particles undergoing two types of stochastic resetting protocols: global resetting, where all particles are returned to their origin simultaneously, and local resetting, where particles are reset one at a time. Our particles interact mainly through hard-core repulsion and hydrodynamic flows. We find that the most substantial effect of interparticle interactions is observed for local resetting, specifically when particles are physically dragged to the origin. In this case, hard-core repulsion broadens the steady-state distribution, while hydrodynamic interactions significantly narrow the distribution. The combination results in a steady-state distribution that is wider compared to that of a single-particle system for both global and local resetting protocols.http://doi.org/10.1103/wz1y-hgnk |
| spellingShingle | Ron Vatash Yael Roichman Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution Physical Review Research |
| title | Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution |
| title_full | Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution |
| title_fullStr | Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution |
| title_full_unstemmed | Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution |
| title_short | Many-body colloidal dynamics under stochastic resetting: Competing effects of particle interactions on the steady-state distribution |
| title_sort | many body colloidal dynamics under stochastic resetting competing effects of particle interactions on the steady state distribution |
| url | http://doi.org/10.1103/wz1y-hgnk |
| work_keys_str_mv | AT ronvatash manybodycolloidaldynamicsunderstochasticresettingcompetingeffectsofparticleinteractionsonthesteadystatedistribution AT yaelroichman manybodycolloidaldynamicsunderstochasticresettingcompetingeffectsofparticleinteractionsonthesteadystatedistribution |