Over the past two decades, lateral quantum dots have permitted a tremendous advancement in the manipulation of individual electrons. In order to have a complete toolbox for electronics at the single electron level, local manipulation in a quantum dot needs to be associated with the controlled transport of individual electrons. Here, we review results on the transfer of individual electrons and their spin degree of freedom between distant lateral quantum dots. The electron is transported in a surface acoustic wave-generated moving quantum dot, with an efficiency of 92%. Furthermore, we will review recent results showing that classical spin information/magnetization can be partially transferred using this method. The fidelity was proven to be limited by the current sample design and implementation, and no fundamental limitation was met. This transfer capability opens new avenues in spin-based quantum information processing and in the implementation of quantum optics experiments with flying electrons. Surface acoustic waves constitute a very promising tool for the displacement of single electrons confined in quantum dots made by surface gate techniques in GaAs-hosted two-dimensional electron gas. It is demonstrated that either a single or two electrons selected in one such quantum dot can be transported, on demand, to a distant quantum dot with very high fidelity. Furthermore it is shown that the spin properties of the electron survive, so far partially, to this mode of transport. The adiabatic regime for loading the electron into the moving dot was reached, practical limitations have been identified, and no fundamental limit is in sight.

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surface gate techniques electrons electronics quantum optics experiments flying spin degree of freedom lateral quantum dots manipulation surface acoustic wavegenerated moving quantum dot gaashosted twodimensional electron gas spinbased quantum information processing classical spin informationmagnetization

Arne Ludwig, Benoit Bertrand, Shintaro Takada, Tristan Meunier,Sylvain Hermelin, Michihisa Yamamoto, Seigo Tarucha, Andreas D. Wieck, Christopher Bäuerle,.Classical information transfer between distant quantum dots using individual electrons in fast moving quantum dots. 254 (3),.

Arne Ludwig, et al."Classical information transfer between distant quantum dots using individual electrons in fast moving quantum dots" 254

Arne Ludwig, Benoit Bertrand, Shintaro Takada, Tristan Meunier,Sylvain Hermelin, Michihisa Yamamoto, Seigo Tarucha, Andreas D. Wieck, Christopher Bäuerle,"Classical information transfer between distant quantum dots using individual electrons in fast moving quantum dots"