An exactly solvable model for single-lane unidirectional ant traffic

Ngo Phuoc Nguyen Ngoc, Huynh Anh Thi and Nguyen Van Vinh

Physica A: Statistical Mechanics and its Applications, 2024, vol. 651, issue C

Abstract: In 2002, Chowdhury et al. introduced a simplified model aimed at depicting the dynamics of single-lane unidirectional ant traffic. Despite efforts, an exact solution for the stationary state of this ant-trail model remains elusive. The primary challenge arises from inherent fluctuations in the total amount of pheromones along the ant trail. These fluctuations significantly influence ant movement. Consequently, unlike conventional models involving driven interacting particles, the average velocity exhibits non-monotonic behavior with ant density. In this study, we propose an exactly solvable model for ant traffic based on the dynamics in Chowdhury et al.’s model and discuss the circumstances under which the non-monotonic trend in average velocity arises.

Keywords: Ant-trail model; Exactly solvable model; Exclusion process (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:651:y:2024:i:c:s0378437124005314

DOI: 10.1016/j.physa.2024.130022

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