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But don't pack your bags for a trip to other side Scientists have discovered a possible biological explanation The black hole's powerful gravity rips the star apart, sending a long streamer of In two studies, international teams The spectacular picture reveals about No planets like this can be found in our own Astronauts on the ISS spend hours every week cleaning the inside of the The research was carried out by scientists at the University of Science and Technology of China and the University of Calgary and their papers were published in the journal on Monday.

Researchers have long known that a photon particle can be split in two and yet the pair are still "entangled", which means that any change in the state of one immediately affects the other, although how this happens is still unknown. More from the South China Morning Post : How quantum satellite launch is helping China develop a communications system that 'cannot be hacked' Quantum teleportation breakthrough earns Pan Jianwei's team China's top science award Physicists take a 'quantum leap' in teleporting photon.

This, in theory, means it could be possible to transmit information by manipulating entangled photons, but various factors, including fluctuating temperatures, can interfere with the process over longer distances outside the laboratory.

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The researchers used sophisticated equipment to counter these and other problems, allowing the Chinese team, led by Professor Pan Jianwei and Professor Zhang, to achieve "full" quantum teleportation of photons over a optical fibre network The Canadian team led by Professor Wolfgang Tittel also teleported the particles over 8. The teleported photons were a virtual copy of the original. Scientists have also teleported photons through the air over km, but the technology can only be used at night and in remote areas because too many of the particles are generated by other sources including natural light.

Using a cable shields the photons from interference and is viewed by researchers as a more practical way of harnessing the technology. The Chinese and Canadian teams used different approaches to carry out their experiments. The Chinese team demonstrated a fuller version of the quantum network with higher reliability, but the Canadian approach was more efficient, according to Grosshans. The Chinese method "comes at the price of a low rate of two teleported photons per hour, which would strongly limit its practical applications if it could not be improved", he said.

The Canadian method "allows a faster teleportation rate of 17 photons per minute", but their low accuracy during transmission "also limits its immediate practical applications". Zhang at the University of Science and Technology of China, said the team's work was only a small step towards the construction of a quantum network. Many technical hurdles, such as storage for the extremely fragile quantum data, remained and it was difficult to predict when a global quantum internet would be operational.

Grosshans said a useful quantum computer was still a few decades away and "the first ones, whether they will be built in or would be very expensive machines".

China is at the forefront of research into quantum communications. It is carrying out experiments on a satellite launched last month as part of efforts to develop a communications system that cannot be cracked by hackers. The experiments involve attempting to transmit information through photons from the satellite to earth.

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Bioscience, flies, and the future of teleportation | OUPblog

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Russia aims to develop 'teleportation' in 20 years

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