The development of linear quantum computing within integrated circuits demands high quality semiconductor single photon sources. In particular, for a reliable single photon source it is not sufficient to have a low multi-photon component, but also to possess high efficiency. We investigate the photon statistics of the emission from a single quantum dot with a method that is able to sensitively detect the trade-off between the efficiency and the multi-photon contribution. Our measurements show, that the light emitted from the quantum dot when it is resonantly excited possess a very low multi-photon content. Additionally, we demonstrated, for the first time, the non-Gaussian nature of the quantum state emitted from a single quantum dot.
@article{arxiv.1211.2993,
title = {Efficiency vs. multi-photon contribution test for quantum dots},
author = {Ana Predojevic and Miroslav Jezek and Tobias Huber and Harishankar Jayakumar and Thomas Kauten and Glenn S. Solomon and Radim Filip and Gregor Weihs},
journal= {arXiv preprint arXiv:1211.2993},
year = {2014}
}
Comments
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