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Quantum Technology: Photons On Chip Paves Way For Advanced Quantum Computing

First Posted: Nov 13, 2015 11:13 AM EST
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Researchers are now adding photon pairs that fit into tiny computer chips, and this new twist is taking quantum computing to another level. The researchers' new technique enables quantum optical technology to be more advanced and efficient compared to current technology and secure communications, according to a study at RMIT University in Australia.

The new technique was created around a micro-ring resonator, which is a miniature optical cavity. This allows energy conservation constraints to be used extensively and quantum processes to be increased. The new technique uses laser beams through varying wavelengths. The researchers had to be careful with technique to avoid destroying the photons' fragile quantum features.

"While a similar suppression of classical effects has been observed in gas vapours and complex micro-structured fibres, this is the first time it has been reported on a chip, opening a route for building scalable integrated devices that exploit the mixing of polarization on a single photon level,'' said Professor David Moss, director of RMIT MicroNano Research Facility and co-author of the study.

"These are fundamental requirements for the ultimate widespread adoption of optical quantum technologies," he added.

The findings of this study were published in Nature Communications.

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