A tweezer array with 6100 highly coherent atomic qubits

A tweezer array with 6100 highly coherent atomic qubits

19 Mar 2024 | Hannah J. Manetsch, Gyohei Nomura, Elie Bataille, Kon H. Leung, Xudong Lv, and Manuel Endres
The paper presents the experimental realization of an optical tweezer array with over 6,100 neutral atoms trapped in approximately 12,000 sites, achieving state-of-the-art performance in several key metrics. The array is designed to trap and control individual atoms, which is crucial for quantum computing, simulation, and metrology. Key achievements include: 1. **High Coherence Time**: A coherence time of 12.6(1) seconds for hyperfine qubits, a record for optical tweezer arrays. 2. **Long Trapping Lifetimes**: A trapping lifetime of 22.9(1) minutes in a room-temperature apparatus, enabling high imaging survival (99.98952%) and imaging fidelity (99.99374%). 3. **Universal Quantum Computing**: The results suggest that universal quantum computing with ten thousand atomic qubits could be a near-term prospect, providing a path towards quantum error correction with hundreds of logical qubits. 4. **Large-Scale Array Generation**: The array is generated using near-infrared wavelengths to minimize decoherence from photon scattering and dephasing, and it achieves uniform loading and high imaging fidelity across the sites. 5. **Imaging and Survival**: The imaging survival probability is 99.98952%, and the vacuum-limited lifetime is 22.9(1) minutes, enabling low-loss, high-fidelity detection of single atoms in large-scale arrays. 6. **Qubit Coherence and Gates**: The array demonstrates long coherence times and high-fidelity single-qubit gates, with a global single-qubit gate fidelity of 99.9834(2)%. These results indicate that the optical tweezer array platform can support large-scale quantum computing and metrology experiments, paving the way for applications in quantum error correction, simulation, and high-precision measurements.The paper presents the experimental realization of an optical tweezer array with over 6,100 neutral atoms trapped in approximately 12,000 sites, achieving state-of-the-art performance in several key metrics. The array is designed to trap and control individual atoms, which is crucial for quantum computing, simulation, and metrology. Key achievements include: 1. **High Coherence Time**: A coherence time of 12.6(1) seconds for hyperfine qubits, a record for optical tweezer arrays. 2. **Long Trapping Lifetimes**: A trapping lifetime of 22.9(1) minutes in a room-temperature apparatus, enabling high imaging survival (99.98952%) and imaging fidelity (99.99374%). 3. **Universal Quantum Computing**: The results suggest that universal quantum computing with ten thousand atomic qubits could be a near-term prospect, providing a path towards quantum error correction with hundreds of logical qubits. 4. **Large-Scale Array Generation**: The array is generated using near-infrared wavelengths to minimize decoherence from photon scattering and dephasing, and it achieves uniform loading and high imaging fidelity across the sites. 5. **Imaging and Survival**: The imaging survival probability is 99.98952%, and the vacuum-limited lifetime is 22.9(1) minutes, enabling low-loss, high-fidelity detection of single atoms in large-scale arrays. 6. **Qubit Coherence and Gates**: The array demonstrates long coherence times and high-fidelity single-qubit gates, with a global single-qubit gate fidelity of 99.9834(2)%. These results indicate that the optical tweezer array platform can support large-scale quantum computing and metrology experiments, paving the way for applications in quantum error correction, simulation, and high-precision measurements.
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