Coherent switching by detuning a side-coupled quantum-dot system

Details Coherent switching by detuning a side-coupled quantum-dot system Coherent switching by detuning a side-coupled quantum-dot system

2008-07-30

arxiv.org/abs/0807.4865v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 RevTeX pages with 14 included png-figures, (pdfLaTeX)

Scientific paper

10.1103/PhysRevB.78.165318

We investigate phase coherent electronic transport in an open quantum system, which consists of quantum dots side-coupled to a nanowire. It is demonstrated that coherent switching can be characterized by adjusting the electronic energy. A comparative analysis of quantum coherence effects in side-coupled quantum-dot systems is presented. Our results demonstrate the relevance of electronic nanodevices based on coherent switching by appropriately detuning the side-coupled quantum dots that are located at variable distance along a wire.

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