A team led by Prof. Guo Guangcan from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) and collaborators first realized distribution of high-dimensional orbital angular momentum entanglement over a 1 km few-mode fiber. The result is published in Optica
Por: Zhang Nannan, Chinese Academy of Sciences, Phys.org. Acesse aqui a matéria original.
The orbital angular momentum of photon is a high dimensional system which has been paid much attention to in recent years. However, orbital angular momentum entanglement is susceptible to atmospheric turbulence or mode crosstalk and mode dispersion in optical fibers. It can only transmit a few meters, and is limited to two-dimensional entanglement distribution. In this work, researchers reported the first distribution of three-dimensional orbital angular momentum (OAM) entanglement via a 1-km-long few-mode optical fiber. Saiba mais...
Schematic of the experimental setup for high-dimensional orbital angular momentum entanglement distribution. Imagem: CAO Huan
Schematic of the experimental setup for high-dimensional orbital angular momentum entanglement distribution. Imagem: CAO Huan
