Researchers from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with researchers from Tsinghua University, led by Ma Xiongfeng, and Fudan University, led by Zhou You, have achieved significant advancements in the preparation and measurement of scalable multipartite entangled states.
Milestone for Optical-Lattice Quantum ComputerQuantum entanglement is fundamental phenomenon underlying quantum computing, the capabilities of which grow exponentially with the increase in the number of entangled qubits. Therefore, the preparation, measurement and coherent manipulation of large-scale entangled states are central challenges in the field of quantum research.
By 2020, the team achieved an entanglement fidelity of 99.3% with over 1,000 pairs of entangled atoms. These studies have paved the way for enhancing the fidelity of atomic entanglement and the capability of parallel atomic control, laying the foundation for larger multi-atom entangled states and further
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