Polaronic effects in quantum dots

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作者：
Chatterjee, A.
Mukhopadhyay, S.
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Acta Physica Polonica, Series B. | 2001年 / 32卷 / 02期
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摘要：
In this article we present the results of our investigations on the ground and the first excited states of a polaron in a polar semiconductor quantum dot in both two and three dimensions. We have also discussed the stability of a strong-coupling bipolaron in quantum dots. We have shown that below a critical value of the confinement length the bipolaron becomes unstable in a quantum dot and breaks up into two individual polarons. We have finally shown that the phonon-induced Zeeman splitting of the first excited level of a two-dimensional parabolic quantum dot becomes strongly size dependent below a certain size and decreases very rapidly with decreasing dot size.
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页码：473 / 502
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