Loading…

Vectorial crystallization problems and collective behavior

We propose and analyze a class of vectorial crystallization problems, with applications to crystallization of anisotropic molecules and collective behavior such as birds flocking and fish schooling. We focus on two-dimensional systems of “oriented” particles: Admissible configurations are represente...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mathematical biology 2022-01, Vol.84 (1-2), p.6-6, Article 6
Main Authors: De Luca, L., Ninno, A., Ponsiglione, M.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We propose and analyze a class of vectorial crystallization problems, with applications to crystallization of anisotropic molecules and collective behavior such as birds flocking and fish schooling. We focus on two-dimensional systems of “oriented” particles: Admissible configurations are represented by vectorial empirical measures with density in S 1 . We endow such configurations with a graph structure, where the bonds represent the “convenient” interactions between particles, and the proposed variational principle consists in maximizing their number. The class of bonds is determined by hard sphere type pairwise potentials, depending both on the distance between the particles and on the angles between the segment joining two particles and their orientations, through threshold criteria. Different ground states emerge by tuning the angular dependence in the potential, mimicking ducklings swimming in a row formation and predicting as well, for some specific values of the angular parameter, the so-called diamond formation in fish schooling.
ISSN:0303-6812
1432-1416
DOI:10.1007/s00285-021-01704-0