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Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot

Yin Jiwen, Yu Yifu and Xiao Jinglin

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Abstract: The properties of a bound polaron in a parabolic quantum dot with weak electron-LO-phonon coupling under a Coulomb field are studied.The ground state energy of the bound polaron is derived by using a linear combination operator and the perturbation method.The influence of the interaction between phonons with different wave vectors in the recoil process on the ground state energy of the bound polaron is discussed.Numerical calculations are performed,and the results show that the ground state energy increases significantly as the effective confinement length of the quantum dot decreases,considering of the interaction between phonons.Whenl0>1.0,the influence of the interaction between phonons on the ground state energy cannot be ignored.

Key words: parabolic quantum dotbound polaroninteraction between phononsground state energy

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    Received: 18 August 2015 Revised: 28 July 2007 Online: Published: 01 December 2007

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      Yin Jiwen, Yu Yifu, Xiao Jinglin. Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot[J]. Journal of Semiconductors, 2007, In Press. Yin J W, Yu Y F, Xiao J L. Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot[J]. Chin. J. Semicond., 2007, 28(12): 1883.Export: BibTex EndNote
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      Yin Jiwen, Yu Yifu, Xiao Jinglin. Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot[J]. Journal of Semiconductors, 2007, In Press.

      Yin J W, Yu Y F, Xiao J L. Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot[J]. Chin. J. Semicond., 2007, 28(12): 1883.
      Export: BibTex EndNote

      Influence of the Interaction Between Phonons and Coulomb Potential on the Properties of a Bound Polaron in a Quantum Dot

      • Received Date: 2015-08-18
      • Accepted Date: 2007-07-23
      • Revised Date: 2007-07-28
      • Published Date: 2007-11-28

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