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Type: Artigo de periódico
Title: Dynamic localization in finite quantum-dot superlattices: A pure ac field effect
Author: Madureira, JR
Schulz, PA
Maialle, MZ
Abstract: We propose that dynamic localization can be unambiguously observed through the linear optical absorption coefficient of a finite quantum dot superlattice. It is shown that the miniband collapse is almost exact in a pure ac field driven system. In the presence of Coulomb interaction, the dynamic localization is partially preserved, showing clear fingerprints in the modulation of the excitonic spectra. The spectra are obtained within an extended semiconductor Bloch equation framework, taking into account the center-of-mass motion for a finite system.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review B. American Physical Soc, v. 70, n. 3, 2004.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.70.033309
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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