Temperature Effect on Vibration Frequency of the Strong-Coupling Polaron in RbCl Asymmetrical Semi-exponential Quantum Wells
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We carried out the theoretical study of the influence of temperature on the polaron vibration frequency in the RbCl asymmetrical semi-exponential quantum wells by using the quantum statistical theory. The vibration frequency and the ground-state binding energy (GSBE) varying with the temperature and the Coulomb interaction are calculated by employing the Lee–Low–Pines transformation method combined with linear combination operation technique. We show that the vibration frequency and the GSBE will be enhanced with raising the temperature and the Coulomb repulsion interaction.
KeywordsVibration frequency Temperature Asymmetrical semi-exponential Lee–Low–Pines transformation Quantum well
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11464033, 11464034) and the National Natural Science Foundation of Jiangsu Normal University (Grant Nos. 15XLA04).