2022

Yaoming Chu and Jianming Cai, Phys. Rev. Lett.128.200501 (2022)

Here, we establish such a physical principle for energy consumption in order to achieve a certain level of measurement precision in quantum metrology, and show that it is intrinsically determined by the erasure of quantum Fisher information.

Min Yu, Yu Liu, Pengcheng Yang, Musang Gong, Qingyun Cao, Shaoliang Zhang, Haibin Liu, Markus Heyl, Tomoki Ozawa, Nathan Goldman and Jianming Cai, npj Quantum Inf. 8, 56 (2022)

We experimentally demonstrate near saturation of the quantum Cramér–Rao bound in the phase estimation of a solid-state spin system, provided by a nitrogen-vacancy center in diamond.

Jingcheng Wang, Dongxiao Li, Ralf Betzholz, and Jianming Cai, Phys. Rev. Applied 18, 024040 (2022)

Our work explores the possibilities of applying the EIG to BED-based quantum-sensing tasks and provides techniques useful to integrate BED into more generalized quantum sensing systems.

Simon B. Jäger, Tom Schmit, Giovanna Morigi, Murray J. Holland, and Ralf Betzholz, Phys. Rev. Lett. 129, 063601 (2022)

We test the performance of our formalism by studying the relaxation of a NOON state and show that the dynamics captures quantum metastability.

Yuan Liu, Yaoming Chu, Shaoliang Zhang, and Jianming Cai, Phy. Rev. Applied 17, 054017 (2022)

Here, we propose a quantum optomechanical system involving exchange interaction between spin angular momentum of light and a torsional oscillator.

Qianqian Chen, Yaoming Chu, and Jianming Cai ,Phys. Rev. A 105, 042609

Here we propose to simulate the movement of a Dirac particle propagating with a superluminal velocity caused by the emergent Alcubierre warp drive spacetime using trapped ions.