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arXiv · 1004.3903

Entanglement dynamics of photon pairs emitted from quantum dot

Yang Zou·Ming Gong·Chuan-Feng Li·Geng Chen·Jian-Shun Tang·Guang-Can Guo
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Abstract

We present a model to derive the state of the photon pairs generated by the biexciton cascade decay of a self-assembled quantum dot, which agrees well with the experimental result. Furthermore we calculate the concurrence and entanglement sudden death is found in this system with temperature increasing, which prevents quantum dot emits entangled photon pairs at a high temperature. The relationship between the fine structure splitting and the sudden death temperature is provided too.

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Yang Zou, Ming Gong, Chuan-Feng Li, Geng Chen, Jian-Shun Tang, Guang-Can Guo. 2010-06-03. Entanglement dynamics of photon pairs emitted from quantum dot. https://doi.org/10.1103/physreva.81.064303

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