2026

Keqing Liu, Jiazhao Tian, Bokun Duan, Hao Zhang, Kangze Li, GuofengZhang, Fedor Jelezko, Ressa S. Said, Jianming Cai and Liantuan Xiao,arXiv:2602.00679

We demonstrate a sparse-sampling strategy for wide-field NV-ensemble magnetometry that reconstructs 10⁴-pixel images from just 25 measurements using mean-adjusted Bayesian estimation, achieving SSIM >0.999 and twofold sensitivity enhancement via optimized pulse sequences.

Yaoming Chu, Baiyi Yu, Hartmut Häffner, Markus Heyl, Nathan Goldman, Jianming Cai,arXiv:2605.31442

A fundamental discovery is revealed: the Heisenberg limit — the pinnacle of quantum precision — is not the rare exception it is often assumed to be, but instead a broadly accessible feature of the exponentially vast Hilbert space.

Kun Yang, Yaoming Chu, Musang Gong, Ning Wang, Jianming Cai,arXiv: 2603.20612

Non-Hermitian quantum systems near exceptional points enhance response, yet their signal-to-noise advantage under realistic noise remains debated. Here, we show that non-Hermitian sensing could outperform Hermitian schemes in practical noise conditions, and supported by Fisher information analysis demonstrating regimes of improved measurement precision.

Xiaoyu Chen, Haibin Liu, Jianming Cai, arXiv:2512.05974

Although Ramsey-like models perform better in environments with highly controllable parameters, RPM models, which do not require precise time control and accurate prior measurement parameters, are better suited to meet the needs of biomagnetic navigation in complex and realistic natural environments.