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arXiv · 2105.06485

Entanglement transport and a nanophotonic interface for atoms in optical tweezers

Tamara Đorđević·Polnop Samutpraphoot·Paloma L. Ocola·Hannes Bernien·Brandon Grinkemeyer·Ivana Dimitrova·Vladan Vuletić·Mikhail D. Lukin
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Abstract

The realization of an efficient quantum optical interface for multi-qubit systems is an outstanding challenge in science and engineering. Using two atoms in individually-controlled optical tweezers coupled to a nanofabricated photonic crystal cavity, we demonstrate entanglement generation, fast non-destructive readout, and full quantum control of atomic qubits. The entangled state is verified in free space after being transported away from the cavity by encoding the qubits into long-lived states and using dynamical decoupling. Our approach bridges quantum operations at an optical link and in free space with a coherent one-way transport, potentially enabling an integrated optical interface for atomic quantum processors.

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Tamara Đorđević, Polnop Samutpraphoot, Paloma L. Ocola, Hannes Bernien, Brandon Grinkemeyer, Ivana Dimitrova, Vladan Vuletić, Mikhail D. Lukin. 2021-09-25. Entanglement transport and a nanophotonic interface for atoms in optical tweezers. https://doi.org/10.1126/science.abi9917

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