On the ground-state energy of a bound polaron in quantum confinement
โ Scribed by S. Yoo-kong
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 160 KB
- Volume
- 394
- Category
- Article
- ISSN
- 0921-4526
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โฆ Synopsis
The ground-state energy of bound polaron in quantum confinement has been calculated by using N-variational parameters to Feynmans approximation action. The method of calculation is based on the Jensen-Feynman inequality which provides an upper bound for the ground-state energy of the polaron in quantum confinement. We also use the same method that Feynman [Phys. Rev. 97 (1955) 660] proposed to calculate the effective mass of a bound polaron.
๐ SIMILAR VOLUMES
The ground-state energy of bound polaron was obtained with strong electron-LO-phonon coupling using a variational method of the Pekar type in a parabolic quantum dot (QD). Quantum transition occurred in the quantum system due to the electron-phonon interaction and the influence of temperature. That
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
A Landau-Pekar variational theory is employed to obtain the ground and the first excited state binding energies of an electron bound to a Coulomb impurity in a polar semiconductor quantum dot (QD) with parabolic confinement in both two and three dimensions. It is found that the binding energy increa