中央研究院原子與分子科學研究所 - 研究人員資訊 (Institute of Atomic and Molecular Sciences, Academia Sinica)

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任祥華博士 (原子物理與光學組)

量子光學與超低溫原子理論實驗室

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C.-H. Chien, S. Goswami, C.-C. Wu, W.-S. Hiew, Y.-C. Chen, and H. H. Jen

Quantum Sci. Tech. 9, 025020 (2024).

Generating scalable graph states in an atom-nanophotonic interface

Scalable graph states are essential for measurement-based quantum computation and many entanglement-assisted applications in quantum technologies. Generation of these multipartite entangled states requires a controllable and efficient quantum device with delicate design of generation protocol. Here we propose to prepare high-fidelity and scalable graph states in one and two dimensions, which can be tailored in an atom-nanophotonic cavity via state carving technique. We propose a systematic protocol to carve out unwanted state components, which facilitates scalable graph states generations via adiabatic transport of a definite number of atoms in optical tweezers. An analysis of state fidelity is also presented, and the state preparation probability can be optimized via multiqubit state carvings and sequential single-photon probes. Our results showcase the capability of an atom-nanophotonic interface for creating graph states and pave the way toward novel problem-specific applications using scalable high-dimensional graph states with stationary qubits.

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中央研究院 原子與分子科學研究所

任祥華 博士 (原子物理與光學組)

任祥華博士 (原子物理與光學組)