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Influence of Dispersion and Polarization on the Two-Parameter Asymmetric Gaussian Confinement Potential Two-Level System with Electric Field

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Abstract

In this paper, the influence of dispersion and polarization on the electronic probability density, the transition frequency and the longitudinal optical (LO) phonon spontaneous emission rate in the two-parameter asymmetric Gaussian confinement (AGC) potential two-level system with the electric field are studied by using the Pekar-type variational method. Numerical results show that the selecting the two-parameter AGC potential to describe the restricted effects of electron in quantum dot can more accurately reveal the quantization characteristics of of the wave property of electronic states, the statistical regularity of electron motion and LO phonons spontaneous emission rate. The influence of the electric field, dispersion and electron -phonon coupling of materials on the probability distribution, transition frequency and LO spontaneous emission rate in the two-level system cannot be ignored.

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Acknowledgments

This project was supported by the National Natural Science Foundation of China, under Grant No. 51902085, The Natural Science Foundation of Inner Mongolia Autonomous Region, China, under Grant No. 2019MS01011 and The Nature Science Foundation of Hebei Province,China, under Grant No. E2013407119 and Grant No. E2019407123.

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Authors and Affiliations

  1. College of Physics and Electronic Information, Inner Mongolia University for Nationalities, Tongliao, 028043, China

    Xu-Fang Bai

  2. Institute of Condensed Matter Physics, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

    Wei Xin, Hong-Wu Yin &  Eerdunchaolu

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  1. Xu-Fang Bai
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  2. Wei Xin
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  3. Hong-Wu Yin
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  4. Eerdunchaolu
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Correspondence to Wei Xin.

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Bai, XF., Xin, W., Yin, HW. et al. Influence of Dispersion and Polarization on the Two-Parameter Asymmetric Gaussian Confinement Potential Two-Level System with Electric Field. Int J Theor Phys 59, 1031–1042 (2020). https://doi.org/10.1007/s10773-020-04384-6

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  • DOI: https://doi.org/10.1007/s10773-020-04384-6

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