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Comparative Analysis of Giant Optical Fluctuations in GaAs Quantum Wells of Different Widths


A comparative analysis is performed of photoluminescence by two-dimensional electron systems with wide and narrow GaAs/AlGaAs quantum wells having close concentrations of electrons in the quantum Hall effect regime. Substantial differences in the intensity of fluctuations at occupation factor 2 are revealed. It is shown that the effect of great optical fluctuations of 2D electrons is much stronger for a wide quantum well. This is explained by the much stronger influence of electron–electron interaction on the energies and wave functions of 2D electrons.

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Correspondence to A. L. Parakhonsky.

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Translated by N. Petrov

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Parakhonsky, A.L., Bisti, V.E., Lebedev, M.V. et al. Comparative Analysis of Giant Optical Fluctuations in GaAs Quantum Wells of Different Widths. Bull. Russ. Acad. Sci. Phys. 86, 438–442 (2022).

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