PUBLICATIONS

Kun Yang, Yaoming Chu, 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.

Jing-Wei Fan, Shuai-Wei Guo, Chao Lin, Ning Wang, Gang-Qin Liu, Quan Li and Ren-Bao Liu, Nano Lett. 24, 14806(2024 )

This work demonstrates quantum coherence control in diamond at temperatures up to 1400 K, marking one of the highest temperatures achieved for quantum control.

Xiaoyu Chen, Haibin Liu, Jianming Cai, Phys. Rev. A 110, 042220 (2024)

A new type of quantum needle model system can relax the requirement for radical pair lifetime by an order of magnitude, and retains a narrow functional window around the geomagnetic field. This provides evidence for identifying the possible physical mechanism for quantum needle in chemical compass model of avian magnetoreception.

Ning Wang

The book explores the materials engineering, properties, and applications of magnetic nanoparticles. This chapter specifically reviews the applications of magnetic nanoparticles in diamond quantum sensing, and also highlights how diamond quantum sensing can be utilized to investigate the magnetic properties of these nanoparticles.

Xiangbei Li, Yaoming Chu, Shaoliang Zhang, Jianming Cai, Phys. Rev. B112, 024302 (2025)

We present a quench-interferometric framework to probe zero-temperature quantum phase transitions (QPTs), which circumvents the challenging preparation of a many-body ground state, advancing the study of QPTs with experimentally practical quantum simulation techniques and revealing a stimulating interplay between quantum metrology and non-equilibrium many-body physics.

Baiyi Yu, Ralf Betzholz, and Jianming Cai, Phys. Rev. Applied 22, 024032 (2024)

We introduce a novel approach for achieving strong coherent coupling between ions and electrons by using a wire data bus along with local parametric modulation of the electron trapping potential. Our approach addresses the challenges posed by their differing masses and charges, enables sympathetic cooling of trapped electrons and significantly enhances ion-ion coupling via electron mediation.

Musang Gong, Jiahe Xu, Min Yu, Liyin Zhang, Qipeng Li, Ning Wang, and Jianming Cai, Phys. Rev. Applied 21, 024053 (2024)

We propose and demonstrate a hybrid quantum thermometer composed of bulk diamond with ensemble NV centers and gadolinium magnetic flux concentrators, achieving a submicrokelvin resolution. Near the critical point, the spin resonance to temperature is about 774 times enhanced compared with that of bare NV centers.

Ning Wang and Jianming Cai, Front. Phys. 12, 1320108 (2024)

Hybrid quantum sensing has emerged as a promising avenue for further enhancing the capabilities of diamond sensors. Different techniques can potentially improve the sensitivity, range of detectable parameters, and sensing frequencies of diamond sensors.

Jingcheng Wang, Shaoliang Zhang, Jianming Cai, Zhenyu Liao, Christian Arenz and Ralf Betzholz, Phys. Rev. A 108, 022408 (2023)

We find that before the mean value of the logarithm of the condition number as a function of the driving time asymptotically approaches the value predicted for a Haar-random evolution it reaches a plateau whose length increases with the system size.