Noise-induced attractor annihilation in the delayed feedback logistic map |
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| Authors: | AN Pisarchik BE Martínez-Zérega |
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| Institution: | 1. Centro de Investigaciones en Optica, Loma del Bosque 115, Leon, Guanajuato, Mexico;2. Centre for Biomedical Technology, Technical University of Madrid, Campus Montegancedo, 28223 Pozuelo de Alarcon, Madrid, Spain;3. Centro Universitario de los Lagos, Universidad de Guadalajara, Enrique Diaz de Leon 1144, Paseos de la Montaña, Lagos de Moreno, Jalisco 47460, Mexico |
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| Abstract: | We study dynamics of the bistable logistic map with delayed feedback, under the influence of white Gaussian noise and periodic modulation applied to the variable. This system may serve as a model to describe population dynamics under finite resources in noisy environment with seasonal fluctuations. While a very small amount of noise has no effect on the global structure of the coexisting attractors in phase space, an intermediate noise totally eliminates one of the attractors. Slow periodic modulation enhances the attractor annihilation. |
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