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Entanglement dynamics of photon pairs emitted from quantum dots

Yang Zou, Ming Gong, Chuan-Feng Li, Geng Chen, Jian-Shun Tang, Guang-Can Guo
2010 Physical Review A. Atomic, Molecular, and Optical Physics  

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2010 pre-print arXiv:1004.3903v1 fatcat:nt7ewmxpqrcb5cjexu3olp6amq

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2010 accepted
arXiv:1004.3903v2 fatcat:sl62w4tqjbdm7eezrxowftbdke
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.
doi:10.1103/physreva.81.064303 fatcat:jc4znthdlndrbbzjjqi6urqnea
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Yang Zou, Ming Gong, Chuan-Feng Li, Geng Chen, Jian-Shun Tang, Guang-Can Guo. "Entanglement dynamics of photon pairs emitted from quantum dots." Physical Review A. Atomic, Molecular, and Optical Physics 81.6 (2010)