A quantum-network register assembled with optical tweezers in an optical cavity

• URL: http://arxiv.org/abs/2407.09109v1
• Date: Fri, 12 Jul 2024 09:20:57 GMT
• Title: A quantum-network register assembled with optical tweezers in an optical cavity
• Authors: Lukas Hartung, Matthias Seubert, Stephan Welte, Emanuele Distante, Gerhard Rempe,
• Abstract summary: Quantum computation and quantum communication are expected to provide users with capabilities inaccessible by classical physics. One solution is to develop a quantum network consisting of small-scale quantum registers containing computation qubits. We report on a register that uses both optical tweezers and optical lattices to deterministically assemble a two-dimensional array of atoms in an optical cavity.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum computation and quantum communication are expected to provide users with capabilities inaccessible by classical physics. However, scalability to larger systems with many qubits is challenging. One solution is to develop a quantum network consisting of small-scale quantum registers containing computation qubits that are reversibly interfaced to communication qubits. Here we report on a register that uses both optical tweezers and optical lattices to deterministically assemble a two-dimensional array of atoms in an optical cavity. Harnessing a single-atom addressing beam, we stimulate the emission of a photon from each atom and demonstrate multiplexed atom-photon entanglement with a generation-to-detection efficiency approaching 90$\%$. Combined with cavity-mediated quantum logic, our approach provides a possible route to distributed quantum information processing.

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