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A diagrammatic approach to the polaron ground-state energy

✍ Scribed by D. Juretić

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
113 KB
Volume
47
Category
Article
ISSN
0370-1972

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📜 SIMILAR VOLUMES

On the ground state energy of a polaron
On the ground state energy of a polaron
✍ K.G. Chakraborty 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 288 KB

A new decoupling approximation has been introduced in the Green's function equation-of-motion analysis of the large polaron. Considering those Feynman diagrams which correspond to the two-phonon Tamm-Dancoff approximations an expression for the polaron ground state energy has been derived. It is fou

Ground state energy of a polaron in a su
Ground state energy of a polaron in a superlattice
✍ S.Y. Mensah; F.K.A. Allotey; G. Nkrumah; N.G. Mensah 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 377 KB

The ground state energy of a polaron in a superlattice was calculated using the double-time Green functions. The effective mass of the polaron along the planes perpendicular to the superlattice axis was also calculated. The dependence of the ground state energy and the effective mass along the plane