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arXiv · 1211.2993

Efficiency vs. multi-photon contribution test for quantum dots

Ana Predojevic·Miroslav Jezek·Tobias Huber·Harishankar Jayakumar·Thomas Kauten·Glenn S. Solomon·Radim Filip·Gregor Weihs
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Abstract

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.

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Ana Predojevic, Miroslav Jezek, Tobias Huber, Harishankar Jayakumar, Thomas Kauten, Glenn S. Solomon, Radim Filip, Gregor Weihs. 2014-03-19. Efficiency vs. multi-photon contribution test for quantum dots. https://doi.org/10.1364/oe.22.004789

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