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Non-adiabatic Current Excitation in Quantum Rings

S. S. Gylfadottir·V. Gudmundsson·C. S. Tang·A. Manolescu
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Abstract

We investigate the difference in the response of a one-dimensional semiconductor quantum ring and a finite-width ring to a strong and short-lived time-dependent perturbation in the THz regime. In both cases the persistent current is modified through a nonadiabatic change of the many-electron states of the system, but by different mechanisms in each case.

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S. S. Gylfadottir, V. Gudmundsson, C. S. Tang, A. Manolescu. 2003-09-29. Non-adiabatic Current Excitation in Quantum Rings. https://doi.org/10.1088/0031-8949%2F2004%2Ft114%2F009

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