Solid-state spin coherence time approaching the physical limit.

• Tác giả: Jiangfeng Du, Yuhang Guo, Shuo Han, Wentao Ji, Zhaoxin Liu, Mengqi Wang, Ya Wang, Xiangyu Ye, Xu Zhou
• Ngôn ngữ: eng
• Ký hiệu phân loại: 070.48346 Journalism
• Thông tin xuất bản: United States : Science advances , 2025
• Bộ sưu tập: NCBI
• ID: 728509

Tóm tắt

Extending the coherence time of quantum systems to their physical limit is a long-standing pursuit and critical for developing quantum science and technology. By characterizing all the microscopic noise sources of the electronic spin [nitrogen-vacancy (NV) center] in diamonds using complete noise spectroscopy, we observe a previously unforeseen noise spectrum manifested as the empirical limit ([Formula: see text]) that has puzzled researchers for decades in various solid-state systems. By implementing a corresponding dynamical decoupling strategy, we are able to surpass the empirical limit and approach the upper physical limit