Ground and Excited States of the Two and Three Dimensional Bipolaron in a Quantum Dot

Yong Hong Ruan; Guo Wei Pan; Qing Hu Chen

doi:10.4028/www.scientific.net/MSF.546-549.1945

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HomeMaterials Science ForumMaterials Science Forum Vols. 546-549Ground and Excited States of the Two and Three...

Ground and Excited States of the Two and Three Dimensional Bipolaron in a Quantum Dot

Abstract:

We apply the Lee-Low-Pines-Huybrechts variational method to study the properties of the two and three dimensional bipolaron in a quantum dot. The ground-state (GS) and two types of excited-state energies of the Fröhlich bipolaron for the whole range of electron-phonon coupling constants can be obtained. Compared with the Franck-Condon excited state, the first relaxed excited state has a lower energy. Effects of quantum dot confinement on the excitation energies of the bipolaron are given.

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Materials Science Forum (Volumes 546-549)

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1945-1950

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https://doi.org/10.4028/www.scientific.net/MSF.546-549.1945

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May 2007

Authors:

Yong Hong Ruan, Guo Wei Pan, Qing Hu Chen

Keywords:

Bipolaron, Excited State, Ground State, Quantum Dot (QD)

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