Chinese Journal of Quantum Electronics, Volume. 37, Issue 6, 699(2020)
Vibrational frequency of strong-coupling polaron in asymmetrical semi-exponential quantum well
By using Huybrechts′ linear combination operator and the second Lee-Low-Pines (LLP) unitary transformation method, the properties of the strong-coupling polaron in RbCl asymmetrical semi-exponential quantum well are investigated. The vibrational frequency and ground state energy of the strong-coupling polaron in a RbCl asymmetrical semi-exponential quantum well are obtained, and the variation of the vibrational frequency and ground state energy with the two positive parameters (U0 and σ) of the asymmetrical semi-exponential confinement potential is derived theoretically. RbCl crystal material is selected for numerical calculation, and the results indicate that U0 and σ are important physical quantities for investigating the properties of the strong-coupling polaron in asymmetrical semi-exponential quantum well, and the vibrational frequency and ground state energy of the strong-coupling polaron increase with the increase of U0, while decrease with the increase of σ.
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ZHANG Jianfang, XIAO Jinglin. Vibrational frequency of strong-coupling polaron in asymmetrical semi-exponential quantum well[J]. Chinese Journal of Quantum Electronics, 2020, 37(6): 699
Received: Nov. 20, 2019
Accepted: --
Published Online: Apr. 22, 2021
The Author Email: Jianfang ZHANG (15147563722@163.com)