Chaos in two-loop negative feedback systems

J. C. Bastos de Figueiredo, L. Diambra, Leon Glass, C. P. Malta
2002 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
Multiloop delayed negative feedback systems, with each feedback loop having its own characteristic time lag ͑delay͒, are used to describe a great variety of systems: optical systems, neural networks, physiological control systems, etc. Previous investigations have shown that if the number of delayed feedback loops is greater than two, the system can exhibit complex dynamics and chaos, but in the case of two delayed loops only periodic solutions were found. Here we show that a period-doubling
more » ... period-doubling cascade and chaotic dynamics are also found in systems with two coupled delayed negative feedback loops.
doi:10.1103/physreve.65.051905 pmid:12059591 fatcat:sf6z7d3klbeglofp7m3wekdlie