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ftth optical fiber cable structure optical fiber cable types twisted pair coaxial cable and optical fiber fiber optic cable GYFT

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As a professional and trustworthy manufacture of ftth optical fiber cable structure optical fiber cable types twisted pair coaxial cable and optical fiber fiber optic cable GYFTA53 fiber optic cable single mode fiber optic cable in China, we can provide high quality product and sevice.For providing high quality products, we are stricted to control our process flow.we can provide high quality cable of optical fiber products, in reasonable price, which are sold all over the world.Our factory has the ability to provide customized products to meet your needs.It's easy to do a good job of a product, but to do a good job of all products depends on high quality service.May we be long-term partners.

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The quantum cyber web guarantees fully faucet-proof communique and powerful distributed sensor networks for brand new science and expertise. however, as a result of quantum counsel can't be copied, it isn't possible to ship this counsel over a classical network. Quantum tips should be transmitted by way of quantum particles, and special interfaces are required for this. The Innsbruck-based mostly experimental physicist Ben Lanyon, who changed into awarded the Austrian delivery Prize in 2015 for his research, is investigating these crucial intersections of a future quantum web.

Now his team at the department of Experimental Physics on the university of Innsbruck and on the Institute of Quantum Optics and Quantum counsel of the Austrian Academy of Sciences has done a list for the switch of quantum entanglement between depend and lightweight. For the first time, a distance of 50 kilometers become coated the usage of fiber optic cables. "here's two orders of magnitude extra than was previously possible and is a realistic distance to beginning constructing inter-metropolis quantum networks," says Ben Lanyon.

transformed photon for transmission

Lanyon's team started the test with a calcium atom trapped in an ion entice. using laser beams, the researchers write a quantum state onto the ion and concurrently excite it to emit a photon through which quantum counsel is stored. subsequently, the quantum states of the atom and the light particle are entangled. however the problem is to transmit the photon over fiber optic cables. "The photon emitted by means of the calcium ion has a wavelength of 854 nanometers and is quickly absorbed by means of the optical fiber," says Ben Lanyon. His crew therefore firstly sends the easy particle via a nonlinear crystal illuminated through a robust laser. Thereby the photon wavelength is converted to the most effective value for long-distance go back and forth: the present telecommunications usual wavelength of 1550 nanometers. The researchers from Innsbruck then ship this photon through a 50-kilometer-lengthy optical fiber line. Their measurements demonstrate that atom and light particle are still entangled even after the wavelength conversion and this long journey.

Even stronger distances in sight

As a subsequent step, Lanyon and his crew display that their strategies would enable entanglement to be generated between ions one hundred kilometers aside and greater. Two nodes send each an entangled photon over a distance of 50 kilometers to an intersection where the light particles are measured in such a way that they lose their entanglement with the ions, which in flip would entangle them. With a hundred-kilometer node spacing now a probability, one might for this reason envisage constructing the realm's first intercity light-count number quantum network in the coming years: best a handful of trapped ion-techniques would be required on how to set up a quantum cyber web between Innsbruck and Vienna, as an instance.

Lanyon's crew is part of the Quantum information superhighway Alliance, a world venture within the Quantum Flagship framework of the european Union. The current outcomes have been published within the Nature journal Quantum tips.

greater guidance: V. Krutyanskiy et al, light-matter entanglement over 50 km of optical fibre, npj Quantum tips (2019). DOI:

quotation: Entanglement sent over 50 km of optical fiber (2019, August 29) retrieved 1 September 2019 from

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