Citation: |
Yang Gui, Zhao Xueting. Time-delayed feedback control of chaos in a GaAs/AlGaAs heterostructure[J]. Journal of Semiconductors, 2010, 31(5): 052003. doi: 10.1088/1674-4926/31/5/052003
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Yang G, Zhao X T. Time-delayed feedback control of chaos in a GaAs/AlGaAs heterostructure[J]. J. Semicond., 2010, 31(5): 052003. doi: 10.1088/1674-4926/31/5/052003.
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Time-delayed feedback control of chaos in a GaAs/AlGaAs heterostructure
DOI: 10.1088/1674-4926/31/5/052003
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Abstract
A theoretical model has been developed to study nonlinear behaviors in a GaAs/AlGaAs heterostructure. We show that the system can exhibit chaotic oscillations under transverse magnetic fields and an electric field. The time-delayed feedback method was applied to stabilize the unstable periodic orbits (UPOs) embedded in the chaotic attractor. A bifurcation specified by a successive decrease in the number of UPOs with delayed time and feedback strength was revealed, indicating the stabilization of UPOs under feedback control. Noticeably, the introduction of a feedback perturbation will sometimes induce chaotic states that do not exist in the unperturbed system.-
Keywords:
- chaos
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References
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Proportional views