The non-Bloch LCAO wave functions for cubic crystals are discussed and applied to the calculation of the matrix elements for electron transitions in an external electric field. The sum of transitions between non-Bloch electron states is compared with the matrix element for a conventional nearly free
β¦ LIBER β¦
Analytical properties of the polarization operator and dispersion relations for of a photon in an external non-abelian field
β Scribed by V. Ch. Zhukovskii; Sh. A. Mamedov; F. S. Sadykov
- Publisher
- Springer
- Year
- 2000
- Tongue
- English
- Weight
- 257 KB
- Volume
- 43
- Category
- Article
- ISSN
- 1573-9228
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## Abstract The lowest eigenvalues of Frohlich's Hamiltonian with a magnetic field are approximately determined by solving the eigenvalue problem of an effective Hamiltonian for a polaron in a magnetic field. The effective Hamiltonian can be diagonalized without approximations, and the eigenvalue p