A variational approach with squeezed-states for the polaronic effects in quantum dots

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Kervan N., Altanhan T., Chatterjee A.

Physics Letters, Section A: General, Atomic and Solid State Physics, vol.315, no.3-4, pp.280-287, 2003 (SCI-Expanded, Scopus)

• Publication Type: Article / Article
• Volume: 315 Issue: 3-4
• Publication Date: 2003
• Doi Number: 10.1016/s0375-9601(03)01011-9
• Journal Name: Physics Letters, Section A: General, Atomic and Solid State Physics
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.280-287
• Keywords: Polarons, Quantum dots
• Ankara Haci Bayram Veli University Affiliated: No

Abstract

The polaronic effects for an electron confined in a parabolic quantum dot are investigated by means of squeezed states. A variational calculation is performed to obtain the polaronic correction to the ground and the first-excited state energies of an electron interacting with optical-phonons. It is shown that the squeezing of the phonon state leads to a significant increase in the polaronic effects in a quantum dot. © 2003 Elsevier B.V. All rights reserved.