A NEW breakthrough led by University of Sydney researchers will see a massive acceleration in information transfer and processing, and secure quantum computing.
Researchers at the Centre of Excellence for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) nodes at the University of Sydney and Macquarie University have managed to slow light down using silicon photonic crystals.
The research was a collaboration between the Australian universities and the University of Bristol and the University of St Andrews (UK), and the Ecole Centrale de Lyon in France.
This is the first research breakthrough at CUDOS since its official relaunch in the beginning of April, as reported by Electronics News.
CUDOS researchers generated individual pairs of photons in the smallest device ever by slowing light down using silicon photonic crystals. At 100 microns long CUDOS’s quantum photon device is 100 times smaller than the one-centimetre devices used by other groups.
According to Dr Chunle Xiong of the University of Sydney, a co-author and Project Leader for the CUDOS program in Quantum Integrated Photonics, the scale of the device means potentially hundreds of them can be incorporated into a single chip.
Researchers at the Centre of Excellence for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) nodes at the University of Sydney and Macquarie University have managed to slow light down using silicon photonic crystals.
The research was a collaboration between the Australian universities and the University of Bristol and the University of St Andrews (UK), and the Ecole Centrale de Lyon in France.
This is the first research breakthrough at CUDOS since its official relaunch in the beginning of April, as reported by Electronics News.
CUDOS researchers generated individual pairs of photons in the smallest device ever by slowing light down using silicon photonic crystals. At 100 microns long CUDOS’s quantum photon device is 100 times smaller than the one-centimetre devices used by other groups.
According to Dr Chunle Xiong of the University of Sydney, a co-author and Project Leader for the CUDOS program in Quantum Integrated Photonics, the scale of the device means potentially hundreds of them can be incorporated into a single chip.
Dr. Chunle Xiong holding the new (small) and old chip (big), Professor Ben Eggleton, CUDOS Director and Dr Christian Grillet.
This could herald practical quantum technologies which will make communications much more secure and computations which are many times faster than currently possible.
“We are able to do this by slowing light down through the use of silicon photonic crystals, which means the ultrashort device behaves as a much longer device, so that the photons are generated in only 100 microns,” explained Dr Xiong.
Information security is ensured due to the nature of quantum computing. Current optical systems use classical light to carry information, and this can be easily tapped into by hackers.
In quantum computing, it is not possible to copy information encoded in quantum states without being noticed by the system. Single photon devices will ensure communication and information systems are secure from hackers.
The experiment and findings have been outlined in a paper to be presented at a prestigious international conference in Baltimore (USA) next week.
Below: a video from the relaunch of CUDOS.
http://www.youtube.com/watch?feature=player_embedded&v=830YgQ_C9fY
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