Monte Carlo Simulation on the Phase Transition of Animal Group

Nguyen Phuoc The; Ngo Van Thanh

doi:10.15625/0868-3166/25/1/5669

Monte Carlo Simulation on the Phase Transition of Animal Group

Nguyen Phuoc The, Ngo Van Thanh

Author affiliations

Authors

Nguyen Phuoc The Department of Natural Science, Duytan University, K7/25 Quang Trung, Haichau, Danang
Ngo Van Thanh Institute of Physics, VAST

DOI:

https://doi.org/10.15625/0868-3166/25/1/5669

Keywords:

flocking behaviors, phase transition, Monte-Carlo simulation

Abstract

In this work, we proposed a new model in order to study the phase transition behaviour of animal group. The individuals in the group are considered as the XY spins which can move freely in a plane with the same speed. For the interactions between every pairs of the individuals, we used the Hamiltonian of the system in the model of spin current with including a long-range Morse potential. Using the Monte-Carlo simulation technique, we obtained the main parameters of the model: the averaged velocity of all individuals which is equivalent to the order parameter or magnetization for the spin model, and the concentration of the individuals. The simulation result clearly shows that the system has three phases which correspond to the uncollected, flocking (schooling) and runaway behaviors at very low, medium and high noise, respectively. The simulation predictions are in good agreement with experimental observations.

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Published

11-05-2015

How to Cite

[1]

N. P. The and N. V. Thanh, “Monte Carlo Simulation on the Phase Transition of Animal Group”, Comm. Phys., vol. 25, no. 1, p. 51, May 2015.

IEEE

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Issue

Vol. 25 No. 1 (2015)

Section

Papers

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