PUBLICATIONS

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.

Min Yu, Dongxiao Li, Jingcheng Wang, Yaoming Chu, Pengcheng Yang, Musang Gong, Nathan Goldman, Jianming Cai, Phys. Rev. Research 3, 043122 (2021)

Our results highlight the general applicability of our method to general quantum platforms, including solid-state spin systems, superconducting quantum computers and trapped ions, hence providing a versatile tool to explore the essential role of the QFI in quantum physics.

Ralf Betzholz, Yu Liu, and Jianming Cai, Phys. Rev. A 104, 012421 (2021)

We present a method for the direct measurement of the Wigner characteristic function of a thermalizing harmonic oscillator that is completely inaccessible for control or measurement.

Yaoming Chu, Pengcheng Yang, Musang Gong, Min Yu, Baiyi Yu, Martin B. Plenio, Alex Retzker, and Jianming Cai, Phys. Rev. Applied 15, 014031 (2021).

By invoking a stable classical clock, the signal phase correlations between successive measurements enable us to extract the target frequency with extremely high precision.

Qianqian Chen, Haibin Liu, Min Yu, Shaoliang Zhang, and Jianming Cai, Phys. Rev. A 102, 052606 (2020)

We propose a dynamical decoupling scheme that sustains the topological phase transition overcoming the influence of dephasing. Therefore, the proposal would facilitate the observation of topological frequency conversion in the solid-state spin system, e.g., nitrogen-vacancy center in diamond.

Jiazhao Tian, Haibin Liu, Yu Liu, Pengcheng Yang, Ralf Betzholz, Ressa S. Said, Fedor Jelezko, and Jianming Cai, Phys. Rev. A 102, 043707 (2020)

Under environmental noise, an XY-8 sequence constituted by optimized gates prolongs the coherence time by 50% compared with standard rectangular pulses in our numerical simulations, showing the application potential of our phase-modulated method in improving the precision of signal detection in the field of quantum sensing.

Jiazhao Tian, Tianyi Du, Yu Liu, Haibin Liu, Fangzhou Jin, Ressa S. Said, and Jianming Cai, Phys. Rev. A 100, 012110 (2019)

Here, we adopt the strategy of optimal quantum control to accelerate coherent-state transfer in the ground-state manifold of the NV center spin using a laser. The results demonstrate improved performance in both the speed and the fidelity of coherent-state transfer which will be useful for optical control of the NV center spin in diamond.

Wanlu Song, Tianyi Du, Haibin Liu, Ralf Betzholz and Jianming Cai, New J. Phys. 22, 063029 (2020)

We propose a nanotube double quantum dot spin transducer that allows to achieve steady-state entanglement between nitrogen-vacancy center spins in diamond with spatial separations up to micrometers.