Erdmann Udo, Ebeling Werner, Mikhailov Alexander S
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, 12489 Berlin, Germany.
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 May;71(5 Pt 1):051904. doi: 10.1103/PhysRevE.71.051904. Epub 2005 May 6.
We consider a model of active Brownian agents interacting via a harmonic attractive potential in a two-dimensional system in the presence of noise. By numerical simulations, we show that this model possesses a noise-induced transition characterized by the breakdown of translational motion and the onset of swarm rotation as the noise intensity is increased. Statistical properties of swarm dynamics in the weak noise limit are further analytically investigated.
我们考虑一个二维系统中通过调和吸引势相互作用的活性布朗粒子模型，该系统存在噪声。通过数值模拟，我们表明，随着噪声强度增加，该模型具有由平移运动的崩溃和群体旋转的开始所表征的噪声诱导转变。我们进一步分析研究了弱噪声极限下群体动力学的统计特性。
