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Dual species matter qubit entangled with light

S. -Y. Lan·S. D. Jenkins·T. Chaneliere·D. N. Matsukevich·C. J. Campbell·R. Zhao·T. A. B. Kennedy·A. Kuzmich
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Abstract

We propose and demonstrate an atomic qubit based on a cold $^{85}$Rb-$^{87}$Rb isotopic mixture, entangled with a frequency-encoded optical qubit. The interface of an atomic qubit with a single spatial light mode, and the ability to independently address the two atomic qubit states, should provide the basic element of an interferometrically robust quantum network.

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S. -Y. Lan, S. D. Jenkins, T. Chaneliere, D. N. Matsukevich, C. J. Campbell, R. Zhao, T. A. B. Kennedy, A. Kuzmich. 2006-11-11. Dual species matter qubit entangled with light. https://doi.org/10.1103/physrevlett.98.123602

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