Zobrazeno 1 - 10
of 440
pro vyhledávání: '"P, Mangeat"'
Emergent complex phases in a discrete flocking model with reciprocal and non-reciprocal interactions
We have undertaken a comprehensive study of the two-species active Ising model (TSAIM), a discrete-symmetry counterpart of the continuous-symmetry two-species Vicsek model [Phys. Rev. E 107, 024607 (2023)], motivated by recent interest in the impact
Externí odkaz:
http://arxiv.org/abs/2412.02501
Autor:
Labouesse, Simon, Idier, Jérôme, Allain, Marc, Giroussens, Guillaume, Mangeat, Thomas, Sentenac, Anne
Improving the resolution of fluorescence microscopy beyond the diffraction limit can be achievedby acquiring and processing multiple images of the sample under different illumination conditions.One of the simplest techniques, Random Illumination Micr
Externí odkaz:
http://arxiv.org/abs/2311.13897
Publikováno v:
Phys. Rev. E 109, 014616 (2024)
Recently it was predicted, on the basis of a lattice gas model, that scalar active matter in a gravitational field would rise against gravity up a confining wall or inside a thin capillary - in spite of repulsive particle-wall interactions [Phys. Rev
Externí odkaz:
http://arxiv.org/abs/2309.09714
Autor:
Lorry Mazzella, Thomas Mangeat, Guillaume Giroussens, Benoit Rogez, Hao Li, Justine Creff, Mehdi Saadaoui, Carla Martins, Ronan Bouzignac, Simon Labouesse, Jérome Idier, Frédéric Galland, Marc Allain, Anne Sentenac, Loïc LeGoff
Publikováno v:
Light: Science & Applications, Vol 13, Iss 1, Pp 1-12 (2024)
Abstract The ultimate aim of fluorescence microscopy is to achieve high-resolution imaging of increasingly larger biological samples. Extended depth of field presents a potential solution to accelerate imaging of large samples when compression of inf
Externí odkaz:
https://doaj.org/article/7c277150fedc4c149e862215690877cc
Publikováno v:
Phys. Rev. E 108, 014604 (2023)
We study the active Potts model with either site occupancy restriction or on-site repulsion to explore jamming and kinetic arrest in a flocking model. The incorporation of such volume exclusion features leads to a surprisingly rich variety of self-or
Externí odkaz:
http://arxiv.org/abs/2212.10251
We consider the two-species Vicsek model (TSVM) consisting of two kinds of self-propelled particles, A and B, that tend to align with particles from the same species and to antialign with the other. The model shows a flocking transition that is remin
Externí odkaz:
http://arxiv.org/abs/2211.10494
Autor:
Shun Li, Zong-Yuan Liu, Hao Li, Sijia Zhou, Jiaying Liu, Ningwei Sun, Kai-Fu Yang, Vanessa Dougados, Thomas Mangeat, Karine Belguise, Xi-Qiao Feng, Yiyao Liu, Xiaobo Wang
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-20 (2024)
Abstract Actomyosin networks constrict cell area and junctions to alter cell and tissue shape. However, during cell expansion under mechanical stress, actomyosin networks are strengthened and polarized to relax stress. Thus, cells face a conflicting
Externí odkaz:
https://doaj.org/article/2335f4665e304fa6ad1ce3be8c4f8cfd
Publikováno v:
EPL 138 (2022) 41001
We consider the off-lattice two-dimensional $q$-state active clock model (ACM) as a natural discretization of the Vicsek model (VM) describing flocking. The ACM consists of particles able to move in the plane in a discrete set of $q$ equidistant angu
Externí odkaz:
http://arxiv.org/abs/2203.01181
The paradigmatic model for heterogeneous media used in diffusion studies is built from reflecting obstacles and surfaces. It is well known that the crowding effect produced by these reflecting surfaces slows the dispersion of Brownian tracers. Here,
Externí odkaz:
http://arxiv.org/abs/2112.05532
Publikováno v:
J. Chem. Phys. 152, 234109 (2020)
We revisit the classic problem of the effective diffusion constant of a Brownian particle in a square lattice of reflecting impenetrable hard disks. This diffusion constant is also related to the effective conductivity of non-conducting and infinitel
Externí odkaz:
http://arxiv.org/abs/2111.04354