The research group of Professor He Qiongyi and Academician Gong Qihuang from the School of Physics has made important progress in the remote preparation of non-Gaussian quantum states

As an important resource for technologies such as quantum communication, quantum computing and quantum precision measurement, related research on quantum entanglement has always been the focus of fierce competition in the international scientific and technological communi.

Recently, the research group of the Institute of Modern Optics, School of Physics, Peking University, State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, Frontier Science Center of Nano-Optoelectronics, "Extreme Optical Innovation Research Team" Professor He Qiongyi and Academician Gong Qihuang and the French Sorbonne University In cooperation with the research group of Pr.

FigureSchematic diagram of remote fabrication of non-Gaussian states based on quantum steeri.

After a breakthrough in theoretical research, the research group of He Qiongyi and Gong Qihuang immediately further cooperated with the research group of Professor Su Xiaolong of the Institute of Optoelectronics of Shanxi University to realize the remote preparation of a non-Gaussian state with Wigner negativity for the first time based on the dual-mode EPR entangled light fie.

Figure(a) Schematic diagram of the experiment for remote fabrication of non-Gaussian states with Wigner negativity; (b) diagram of the experimental setup

Quantum entanglement and Wigner negativity are both intrinsic properties of the quantum wor.

The above research work has been supported by the National Natural Science Foundation of China, the National Key R&D Program, the Beijing Natural Science Foundation, the Yangtze River Delta Optoelectronics Research Institute of Peking University, and the Collaborative Innovation Center of Extreme Optics of Shanxi Universi.