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Periodically kicked rotor:. Winding Number. Circle map. For the linear map. Ω rational → periodic Ω irrational → quasi-periodic. W=5/8. 2. 7. 5. 0. 4. 1. 3. 6. Continued Fraction. n th order approximation:. Approximation of irrational number by rational fractions.
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Winding Number Circle map For the linear map Ω rational → periodic Ω irrational → quasi-periodic
W=5/8 2 7 5 0 4 1 3 6
Continued Fraction nth order approximation: Approximation of irrational number by rational fractions
Golden Ratio → Fibonacci series: 1,2,3.5.8….
Quasiperiodicity + ? w2 w1
Quasiperiodicity + Torus
Winding Numbers Frequency-ratio parameter: (Rotation number) number of times the trajectory winds around the small cross-section of the torus after going once around the large circumference.
Ruelle-Taken-Newhouse route to Chaos Ref: Argyris etl
Quasiperiodic route to Chaos Ref: Argyris etl