Jin Xianmin, a quantum communication researcher with Shanghai Jiaotong University, shows a photonic quantum chip in Shanghai, May 15, 2018. [Photo/Xinhua] WASHINGTON - Chinese scientists demonstrated the first two-dimensional quantum walks of single photons in real spatial space, which may provide a powerful platform to boost analog quantum computing. They reported in a paper published on Friday in the journal Science Advances a three-dimensional photonic chip with a scale up to 49-multiply-49 nodes, by using a technique called femtosecond direct writing. Jin Xianmin, a quantum communication researcher with Shanghai Jiaotong University, who led the study, told Xinhua, it is the largest-scaled chip reported so far that allows for the realization of this two-dimensional quantum walk in real spatial space, and potential exploration for many new quantum computing tasks. Jin and his colleague showed that the dimension and scale of quantum system could be employed as new resources for boosting the quantum computing power. jelly band silicone medical alert braceletbracelets for a causecustom tennis wristbandscustomized silicone braceletswhite rubber wristbands
The Nansha Bridge, as shown from an aerial drone, is officially opened on Tuesday. LIANG XU/XINHUA BEIJING - The Nansha Bridge opened Tuesday in the southern province of Guangdong, becoming China's first bridge with a 5G network, the country's state-asset regulator said Wednesday. As the latest major transport project in the Guangdong-Hong Kong-Macao Greater Bay Area, the 12.89-km bridge began to provide 4G and 5G services on the day it opened, according to the State-owned Assets Supervision and Administration Commission of the State Council. To ensure smooth network connectivity, telecommunication base stations were launched on the towers and lamp posts of the bridge, an innovative technique, said the commission. Also known as the Humen Second Bridge, the 40.5-meter-wide Nansha Bridge is the world's widest steel box girder suspension bridge. Linking Guangzhou and Dongguan, two major cities in the Greater Bay Area, the bridge is designed for a traffic speed of 100 kph and expected to greatly relieve traffic pressure in the area.
