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- W2751967599 abstract "Recent controversy on the quantum dots dephasing mechanisms (between pure and inelastic) is re-examined by isolating the quantum dots from their substrate by using the appropriate limits of the ionization energy theory and the quantum adiabatic theorem. When the phonons in the quantum dots are isolated adiabatically from the phonons in the substrate, the elastic or pure dephasing becomes the dominant mechanism. On the other hand, for the case where the phonons from the substrate are non-adiabatically coupled to the quantum dots, the inelastic dephasing process takes over. This switch-over is due to different elemental composition in quantum dots as compared to its substrate. We also provide unambiguous analysis as to understand why GaAs/AlGaAs quantum dots may only have pure dephasing while InAs/GaAs quantum dots give rise to the inelastic dephasing as the dominant mechanism. It is shown that the elemental composition plays an important role (of both quantum dots and substrate) in evaluating the dephasing mechanisms of quantum dots." @default.
- W2751967599 created "2017-09-15" @default.
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- W2751967599 date "2010-01-01" @default.
- W2751967599 modified "2023-10-07" @default.
- W2751967599 title "Controlling electronic and adiabatic isolation of quantum dots from the substrate : an ionization-energy theoretic study" @default.
- W2751967599 hasPublicationYear "2010" @default.
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