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Abstract: We report the generation of entanglement between two individual $^{87}$Rbatoms in hyperfine ground states $|F=1,M=1>$ and $|F=2,M=2>$ which are held intwo optical tweezers separated by 4 $\mu$m. Our scheme relies on the Rydbergblockade effect which prevents the simultaneous excitation of the two atoms toa Rydberg state. The entangled state is generated in about 200 ns using pulsedtwo-photon excitation. We quantify the entanglement by applying global Ramanrotations on both atoms. We measure that 61% of the initial pairs of atoms arestill present at the end of the entangling sequence. These pairs are in thetarget entangled state with a fidelity of 0.75.



Autor: T. Wilk, A. Gaëtan, C. Evellin, J. Wolters, Y. Miroshnychenko, P. Grangier, A. Browaeys

Fuente: https://arxiv.org/







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