Entanglement transport and a nanophotonic interface for atoms in optical tweezers

• URL: http://arxiv.org/abs/2105.06485v2
• Date: Sat, 25 Sep 2021 16:14:15 GMT
• Title: Entanglement transport and a nanophotonic interface for atoms in optical tweezers
• Authors: Tamara {\DJ}or{\dj}evi\'c, Polnop Samutpraphoot, Paloma L. Ocola, Hannes Bernien, Brandon Grinkemeyer, Ivana Dimitrova, Vladan Vuleti\'c, Mikhail D. Lukin
• Abstract summary: We demonstrate entanglement generation, fast non-destructive readout, and full quantum control of atomic qubits. 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.
• Score: 0.28106259549258145
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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