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Polaronic effect on a bound polaron
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RUAN Yong-hong, WU Fu-li, CHEN Qing-hu. Polaronic effect on a bound polaron[J]. Journal of Zhejiang University Science A, 2002, 3(5): 574-578.
@article{title="Polaronic effect on a bound polaron",
author="RUAN Yong-hong, WU Fu-li, CHEN Qing-hu",
journal="Journal of Zhejiang University Science A",
volume="3",
number="5",
pages="574-578",
year="2002",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2002.0574"
}
%0 Journal Article
%T Polaronic effect on a bound polaron
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%A CHEN Qing-hu
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%DOI 10.1631/jzus.2002.0574
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T1 - Polaronic effect on a bound polaron
A1 - RUAN Yong-hong
A1 - WU Fu-li
A1 - CHEN Qing-hu
J0 - Journal of Zhejiang University Science A
VL - 3
IS - 5
SP - 574
EP - 578
%@ 1869-1951
Y1 - 2002
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2002.0574
Abstract: Feynman variational path-integral theory was used to obtain the ground-state energy of a polaron in a quantum well in the presence of a Coulomb potential for arbitrary values of the electron-phonon coupling constant α. Numerical and analytical results showed that the energy shift was more sensitive to α than to the Coulomb binding parameter (β) and increased with the decrease of effective quantum well width lZ. It was interesting that due to the electronic confinement in the quasi-2D (quantum well) structures, the lower bound of the strong coupling regime was shifted to smaller values of α. Comparison of the polaron in the quantum well with that in the quantum wire or dot showed that the polaronic effect strengthened with decrease of the confinement dimension.
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