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IMAGE: An elementary link of a quantum repeater based on two absorptive QMs with the Sandwich-like structure view more
Credit: WANG Guoyan and MA Yanbing
Chinese researchers realized an elementary link of a quantum repeater based on absorptive quantum memories (QMs) and demonstrated the multiplexed quantum repeater for the first time. On June 2nd?the work is published in
Nature.
The fundamental task of a quantum network is to distribute quantum entanglement between two remote locations. However, the transmission loss of optical fiber has limited the distance of entanglement distribution to approximately 100 km on the ground. Quantum repeaters can overcome this difficulty by dividing long-distance transmission into several short-distance elementary links. The entanglement of two end nodes of each link is created firstly. Then the entanglement distance is gradually expanded through entanglement swapping between each link.
The program, now in its third year, focuses on how photonic devices are impacting quantum science, technology, and applications On 12-16 July, SPIE, the international society for optics and photonics
UArizona Engineers Demonstrate a Quantum Advantage In a new paper, researchers in the College of Engineering and James C. Wyant College of Optical Sciences experimentally demonstrate how quantum resources aren t just dreams for the distant future – they can improve the technology of today. By Emily Dieckman, College of Engineering Today
Quantum computing and quantum sensing have the potential to be vastly more powerful than their classical counterparts. Not only could a fully realized quantum computer take just seconds to solve equations that would take a classical computer thousands of years, but it could have incalculable impacts on areas ranging from biomedical imaging to autonomous driving.