Injection of a single electron from static to moving quantum dots
Mesoscale and Nanoscale Physics
2016-05-04 v1
Abstract
We study the injection mechanism of a single electron from a static quantum dot into a moving quantum dot created in a long depleted channel with surface acoustic waves (SAWs). We demonstrate that such a process is characterized by an activation law with a threshold that depends on the SAW amplitude and the dot-channel potential gradient. By increasing sufficiently the SAW modulation amplitude, we can reach a regime where the transfer is unitary and potentially adiabatic. This study points at the relevant regime to use moving dots in quantum information protocols.
Keywords
Cite
@article{arxiv.1601.02485,
title = {Injection of a single electron from static to moving quantum dots},
author = {Benoit Bertrand and Sylvain Hermelin and Pierre-André Mortemousque and Shintaro Takada and Michihisa Yamamoto and Seigo Tarucha and Arne Ludwig and Andreas D. Wieck and Christopher Bäuerle and Tristan Meunier},
journal= {arXiv preprint arXiv:1601.02485},
year = {2016}
}
Comments
5 pages, 4 figures