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Scheme for the implementation of optimal cloning of arbitrary single particle atomic state into two photonic states

Wei Song·Tao Qin
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Abstract

We present a feasible scheme to implement the $1 \to 2$ optimal cloning of arbitrary single particle atomic state into two photonic states, which is important for applications in long distance quantum communication. Our scheme also realizes the tele-NOT gate of one atom to the other distant atom trapped in another cavity. The scheme is based on the adiabatic passage and the polarization measurement. It is robust against a number of practical noises such as the violation of the Lamb-Dicke condition, spontaneous emission and detection inefficiency.

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Wei Song, Tao Qin. 2006-12-22. Scheme for the implementation of optimal cloning of arbitrary single particle atomic state into two photonic states. https://arxiv.org/abs/quant-ph/0612181

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