Noise-Induced Bistable States and Their Mean Switching Time in Foraging Colonies
Noise-Induced Bistable States and Their Mean Switching Time in Foraging Colonies
复制标题
DOI：
10.1103/physrevlett.112.038101
复制
发表时间：
2014-01-22
影响因子：
8.6
通讯作者：
McKane, Alan J.
中科院分区：
文献类型：
--
作者：
Biancalani, Tommaso;Dyson, Louise;McKane, Alan J.
我们研究了一类发生在种群系统中的双稳态，其中噪声不仅引起稳定状态之间的转换，而且还构造了状态本身。我们专注于实验研究系统的蚂蚁选择两种食物来源来说明的要点，但想法是更一般。计算了系统在两个稳态之间切换的平均时间。这表明一个程序估计，在一个真实的系统，临界人口规模以上的双稳态停止发生。
We investigate a type of bistability occurring in population systems where noise not only causes transitions between stable states, but also constructs the states themselves. We focus on the experimentally well-studied system of ants choosing between two food sources to illustrate the essential points, but the ideas are more general. The mean time for switching between the two bistable states of the system is calculated. This suggests a procedure for estimating, in a real system, the critical population size above which bistability ceases to occur.