Autoresonant control of the many-electron dynamics in nonparabolic quantum wells

Abstract

The optical response of nonparabolic quantum wells is dominated by a strong peak at the plasmon frequency. When the electrons reach the anharmonic regions, resonant absorption becomes inefficient. This limitation is overcome by using a chirped laser pulse in the autoresonant regime. By direct simulations using the Wigner phase-space approach, the authors prove that, with a sequence of just a few pulses, electrons can be efficiently detrapped from a nonparabolic well. For an array of multiple quantum wells, they can create and control an electronic current by suitably applying an autoresonant laser pulse and a slowly varying dc electric field.

arXiv comment3 pages

References in corpus (5)

• Decoherence, einselection, and the quantum origins of the classical
• Open quantum systems
• Theory of Ferromagnetism in Diluted Magnetic Semiconductor Quantum Wells
• Coherent control of intersubband optical bistability in quantum wells
• Optical response of two-dimensional electron fluids beyond the Kohn regime: strong non-parabolic confinement and intense laser light

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