Application of the Spectral Density Method to the Anderson-Holstein Model
Current Perspective to Physical Science Research Vol. 4,
21 November 2023
,
Page 107-113
https://doi.org/10.9734/bpi/cppsr/v4/2384G
Abstract
Two-parameter spectral density function (density of states) of a magnetic impurity electron in a non-magnetic metal is calculated using a single-level Anderson-Holstein model using the spectral density method. Here we have treated electron-electron interaction within the mean-field level and investigated the effect of electron-phonon interaction on the spectral function. We have observed a strong polaronic effect with increasing electron-phonon interaction strength at zero temperature.
Keywords:
- Anderson-Holstein model
- magnetic impurity
- spectral density function
- spectral density method
- phonons
How to Cite
Chebrolu , N. R. ., & Chatterjee , A. . (2023). Application of the Spectral Density Method to the Anderson-Holstein Model. Current Perspective to Physical Science Research Vol. 4, 107–113. https://doi.org/10.9734/bpi/cppsr/v4/2384G