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Primeur weekly 2011-12-19

Special

SARA supercomputers today 600.000 times faster than its first 100 Mflop/s Cyber 205 supercomputer in 1983 ...

SC'11 bigger than ever ...

The Cloud

Atos leads the OPTIMIS project for the optimisation of services in Cloud ...

ISGC 2012 registration opens now ...

ConteXtream launches software-defined network virtualization solution for Cloud and hosting providers ...

BGI-BOX terminal server debut operation in China Agricultural University ...

Amazon Web Services launches Brazil data centres for its Cloud computing platform ...

Office 365 becomes first and only major Cloud productivity service to comply with leading EU and U.S. standards for data protection and security ...

EuroFlash

Counting the cost of research computing infrastructures ...

Bull taps Nimsoft to expand its Vision Services ...

ATLAS and CMS experiments present Higgs search status ...

New supercomputer for Bielefeld's high-energy physicists ...

Slovak Academy of Science selects IBM Power Systems and Storage for National Supercomputing Project ...

Multi-purpose photonic chip paves the way to programmable quantum processors ...

USFlash

Cray XMT supercomputer arrives at the Noblis Center for Applied High Performance Computing ...

SDSC welcomes 'Gordon' supercomputer as a research powerhouse ...

Triton resource helps track how kinesin molecules move ...

Astronomical amount of data travels across Western Canada to support space research ...

Jacket v2.0 for faster code in MATLAB ...

GPU-accelerated engineering simulation application to enable highest quality products for aerospace and other mission critical fields ...

BGI tackles DNA data deluge using NVIDIA Tesla GPUs ...

Chinese Ministry of Education to integrate CUDA programming curriculum in universities nationwide ...

NVIDIA opens up CUDA Platform by releasing compiler source code ...

High-energy physicists set record for network data transfer ...

Rogue Wave announces support for upcoming Intel Many Integrated Core architecture based products ...

Rogue Wave announces Stingray Studio 11.0 release ...

TotalView selected for China's National Supercomputing Centre in Shenzhen ...

New application makes supercomputing simple ...

HP enables organisations worldwide to expand data centre resources with HP POD ...

Oracle delivers record performance result for a two processor Intel-based system with TPC-C benchmark ...

Early black holes grew big eating cold, fast food ...

Multi-purpose photonic chip paves the way to programmable quantum processors

11 Dec 2011 Bristol - The fundamental resource that drives a quantum computer is entanglement - the connection between two distant particles which Einstein famously called 'spooky action at a distance'. The Bristol researchers have, for the first time, shown that this remarkable phenomenon can be generated, manipulated and measured entirely on a tiny silica chip. They have also used the same chip to measure mixture - an often unwanted effect from the environment, but a phenomenon which can now be controlled and used to characterize quantum circuits, as well as being of fundamental interest to physicists.

"In order to build a quantum computer, we not only need to be able to control complex phenomena such as entanglement and mixture, but we need to be able to do this on a chip, so that we can scalably and practically duplicate many such miniature circuits - in much the same way as the modern computers we have today", stated Professor Jeremy O'Brien, Director of the Centre for Quantum Photonics. "Our device enables this and we believe it is a major step forward towards optical quantum computing."

The chip, which performs several experiments that would each ordinarily be carried out on an optical bench the size of a large dining table, is 70 mm by 3 mm. It consists of a network of tiny channels which guide, manipulate and interact single photons - particles of light. Using eight reconfigurable electrodes embedded in the circuit, photon pairs can be manipulated and entangled, producing any possible entangled state of two photons or any mixed state of one photon.

"It isn't ideal if your quantum computer can only perform a single specific task", explained Peter Shadbolt, lead author of the study, which is published in the journalNature Photonics. "We would prefer to have a reconfigurable device which can perform a broad variety of tasks, much like our desktop PCs today - this reconfigurable ability is what we have now demonstrated. This device is approximately ten times more complex than previous experiments using this technology. It's exciting because we can perform many different experiments in a very straightforward way, using a single reconfigurable chip."

The researchers, who have been developing quantum photonic chips for the past six years, are now working on scaling up the complexity of this device, and see this technology as the building block for the quantum computers of the future.

Dr Terry Rudolph from Imperial College in London, UK, believes this work is a significant advance. He stated: "Being able to generate, manipulate and measure entanglement on a chip is an awesome achievement. Not only is it a key step towards the many quantum technologies - such as optical quantum computing - which are going to revolutionize our lives, it gives us much more opportunity to explore and play with some of the very weird quantum phenomena we still struggle to wrap our minds around. They have made it so easy to dial up in seconds an experiment that used to take us months, that I'm wondering if even I can run my own experiment now."

The paper "Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit" is written by P. J. Shadbolt, M. R. Verde, A. Peruzzo, A. Politi, A. Laing, M. Lobino, J. C. F. Matthews, M. G. Thompson and J. L. O'Brien and is published inNature Photonics.
Source: University of Bristol

Back to Table of contents

Primeur weekly 2011-12-19

Special

SARA supercomputers today 600.000 times faster than its first 100 Mflop/s Cyber 205 supercomputer in 1983 ...

SC'11 bigger than ever ...

The Cloud

Atos leads the OPTIMIS project for the optimisation of services in Cloud ...

ISGC 2012 registration opens now ...

ConteXtream launches software-defined network virtualization solution for Cloud and hosting providers ...

BGI-BOX terminal server debut operation in China Agricultural University ...

Amazon Web Services launches Brazil data centres for its Cloud computing platform ...

Office 365 becomes first and only major Cloud productivity service to comply with leading EU and U.S. standards for data protection and security ...

EuroFlash

Counting the cost of research computing infrastructures ...

Bull taps Nimsoft to expand its Vision Services ...

ATLAS and CMS experiments present Higgs search status ...

New supercomputer for Bielefeld's high-energy physicists ...

Slovak Academy of Science selects IBM Power Systems and Storage for National Supercomputing Project ...

Multi-purpose photonic chip paves the way to programmable quantum processors ...

USFlash

Cray XMT supercomputer arrives at the Noblis Center for Applied High Performance Computing ...

SDSC welcomes 'Gordon' supercomputer as a research powerhouse ...

Triton resource helps track how kinesin molecules move ...

Astronomical amount of data travels across Western Canada to support space research ...

Jacket v2.0 for faster code in MATLAB ...

GPU-accelerated engineering simulation application to enable highest quality products for aerospace and other mission critical fields ...

BGI tackles DNA data deluge using NVIDIA Tesla GPUs ...

Chinese Ministry of Education to integrate CUDA programming curriculum in universities nationwide ...

NVIDIA opens up CUDA Platform by releasing compiler source code ...

High-energy physicists set record for network data transfer ...

Rogue Wave announces support for upcoming Intel Many Integrated Core architecture based products ...

Rogue Wave announces Stingray Studio 11.0 release ...

TotalView selected for China's National Supercomputing Centre in Shenzhen ...

New application makes supercomputing simple ...

HP enables organisations worldwide to expand data centre resources with HP POD ...

Oracle delivers record performance result for a two processor Intel-based system with TPC-C benchmark ...

Early black holes grew big eating cold, fast food ...