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As a professional ftth optical fiber cable structure optical fiber cable types ftth optical fiber cable Armored cable fiber optic cable manufacturer, we are committed to provide trustworthy products.For providing high quality products, we are stricted to control our process flow.Our optical fiber cable network products have not only high quality, but also reasonable price.Our factory have the confidence that through our mutual trust and long-term cooperation, we can build a good solid friendship.Our team pays most attention to service.If we don't meet today, good morning, good afternoon and good night.

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INNSBRUCK, Austria, Aug. 30, 2019 — A group from the college of Innsbruck and the Institute of Quantum Optics and Quantum advice of the Austrian Academy of Sciences has performed what can be a listing for the switch of quantum entanglement between depend (a trapped ion) and lightweight (a photon). The team despatched quantum tips over a distance of 50 km the use of fiber optic cables. “here's two orders of magnitude further than become previously possible and is a pragmatic distance to delivery building intercity quantum networks,” lead researcher Ben Lanyon observed.

The researchers began by using trapping a calcium atom in an ion trap. using lasers, they wrote a quantum state onto the ion while pleasing it to emit a photon, during which quantum information turned into stored. The quantum states of the atom and the photon grew to become entangled.

The photon that turned into emitted by way of the calcium ion had a wavelength of 854 nm. To avoid the photon from being absorbed by way of the optical fiber as it become being transmitted over a fiber optic cable, the researchers first despatched the photon via a nonlinear crystal illuminated by a strong laser. This step brought about the photon wavelength to be transformed to 1550 nm, the latest telecommunications typical wavelength and a suitable wavelength for long-distance travel.

In a nonlinear crystal illuminated by way of a robust laser, the photon wavelength is converted to the most effective value for long-distance trip. Courtesy of IQOQI Innsbruck/Harald researchers then despatched the photon through a 50-km-lengthy optical fiber line. Their measurements showed that the atom and photon were nevertheless entangled, even after the wavelength conversion and the 50-km experience.

next, the researchers plan to reveal that their formulation could be used to allow entanglement between ions one hundred km apart and greater. With the chance of 100-km node spacing, constructing the world’s first intercity mild-count number quantum community may be viable within the coming years. for instance, only a small variety of trapped ion-programs could be required to establish a quantum cyber web between Innsbruck and Vienna, the team noted.

The research turned into posted in npj Quantum assistance (

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