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Anisotropic parabolic confinement potential effect on polaron ground state and phonon's number in the RbCl asymmetrical quantum wells

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Abstract

The effect of anisotropic parabolic confinement potential (APCP) on the strong-coupling (SC) polaron ground state and phonon mean number (PMN) of RbCl asymmetrical semi-exponential quantum wells (ASEQWs) have been investigated on the basis of Lee–Low–Pines (LLP) unitary transformation and linear combination operation methods. It was found that (1) the GSBE and PMN of SC polaron in ASEQWs were decreasing functions of the parameter \(\sigma\) and increasing functions of parameters \(V_{0}\) of asymmetrical semi-exponential potential (ASEP). (2) The GSBE and PMN were elevated with raising the ECSs of APCP along both \(x\) and \(y\) directions. (3) These results could be ascribed to fascinating quantum dimension confinement effects.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11464033, 11464034), the Natural Science Foundation of Inner Mongolia Autonomous Region of China under Grant No. 2017MS (LH) 0107, and the foundation of Inner Mongolia University of Nationalities (No. NMDYB20041).

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Authors and Affiliations

  1. Institute of Condensed Matter Physics, Inner Mongolia University for Nationalities, Tongliao, 028043, People’s Republic of China

    Xiu-Juan Miao, Yong Sun & Jing-Lin Xiao

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  1. Xiu-Juan Miao
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  2. Yong Sun
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  3. Jing-Lin Xiao
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Correspondence to Yong Sun or Jing-Lin Xiao.

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Miao, XJ., Sun, Y. & Xiao, JL. Anisotropic parabolic confinement potential effect on polaron ground state and phonon's number in the RbCl asymmetrical quantum wells. Indian J Phys 96, 1969–1973 (2022). https://doi.org/10.1007/s12648-021-02136-8

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  • DOI: https://doi.org/10.1007/s12648-021-02136-8

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