Carrier-Envelope-Phase Control of Single-Electron Transport in Coupled Quantum Dots

We propose a scheme for controlling the coherent transport of a single electron through a closed three-level structure in coupled quantum dots. The coherent transport is externally controlled by applying a weak few-cycle pulse with an adjustable carrier-envelope phase (CEP). It is revealed numerical...

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Published inChinese physics letters Vol. 30; no. 11; pp. 114205 - 1-114205-4
Main Authors Yang, Wen-Xing, Chen, Ai-Xi, Bai, Yan-Feng, Lu, Jia-Wei
Format Journal Article
LanguageEnglish
Published 01.11.2013
Subjects
Adjustable
Carriers
Coherence
Control systems
Design engineering
Joining
Quantum dots
Transport
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Summary:We propose a scheme for controlling the coherent transport of a single electron through a closed three-level structure in coupled quantum dots. The coherent transport is externally controlled by applying a weak few-cycle pulse with an adjustable carrier-envelope phase (CEP). It is revealed numerically that there exists a significant dependence of the electron transport on the CEP. Our results illustrate the potential to utilize few-cycle pulses for the excitation in coupled quantum dot systems through control of the CEP, as well providing guidance in the design for possible experimental implementations.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/30/11/114205