Dispersion Theory of Polaron in a Parabolic Quantum Dot at Finite Temperatures |
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| Authors: | SUN Er-Lin FENG Dong-Hai JIA Tian-qing ZHOU Kan SUN Zhen-Rong |
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| Institution: | 1.State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China
;2.State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Shanghai 201800, China |
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| Abstract: | By using the dispersion theory instead of the Fröhlich Hamiltonian, the polaron energy in a quantum dot with a parabolic confinement potential is investigated at finite temperatures. It is found that the self-trapping energy of the polaron decreases with the increasing temperature, and the temperature effect is more obvious in quantum dots with weaker confinement. |
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| Keywords: | semiconductors quantum dots electron-phonon interactions |
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