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Primeur weekly 2015-07-06

Special

Moving up to an Open Science Commons ...

HPC in the Baltic region ...

Data Access helps its customers get the most out of their HPC investments ...

The importance of being earnest about the long tail of research ...

Comstor to simply the IP management of clusters ...

Arbor Networks to protect organisations against DDoS attacks ...

Open Science perspective highlighted at e-IRG workshop in Riga ...

Focus on Europe

IBM, NVIDIA and Mellanox launch Design Center for Big Data and High Performance Computing ...

Launch event of SuperMUC Phase 2 on June 29, 2015 ...

Bright welcomes PC Link Egypt to its Partner Network ...

Middleware

OpenMP Device Constructs ...

Bright Computing to release Version 7.1 of Bright Cluster Manager at the ISC High Performance 2015 Conference ...

Agenda announced for PBS Works User Group Meeting ...

Hardware

CoolIT Systems reaches 50th patent milestone ...

DDN outlines strategic vision driving rapid adoption of DDN high performance storage technology throughout the enterprise ...

Nallatech 510T FPGA accelerator disrupts the data centre ...

Japan Atomic Energy Agency chooses SGI ICE X for new supercomputer system ...

ADVA Optical Networking unveils all-new Data Center Interconnect solution ...

ADVA Optical Networking launches new NFV demarcation product family ...

T-Systems and ADVA Optical Networking showcase the future of Terabit networking in unique demonstration ...

DDN object storage usage grows to 200+ billion objects; now world's 2nd largest object platform behind Amazon ...

Applications

Blue Waters simulations suggest there are fewer faint galaxies than expected ...

Researcher discovers groundwater modelling breakthrough ...

Internet of Things Turning New York's Lake George Into “World’s Smartest Lake ...

Producing spin-entangled electrons ...

The quantum middle man ...

New method of quantum entanglement packs vastly more data in a photon ...

The Cloud

Computational scientist Peter Coveney keynotes at ISC Cloud & Big Data ...

New method of quantum entanglement packs vastly more data in a photon

29 Jun 2015 Los Angeles - A team of researchers led by UCLA electrical engineers has demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter how far apart they are - a phenomenon known as quantum entanglement. In previous studies, photons have typically been entangled by one dimension of their quantum properties - usually the direction of their polarization.

In the new study, researchers demonstrated that they could slice up and entangle each photon pair into multiple dimensions using quantum properties such as the photons' energy and spin. This method, called hyperentanglement, allows each photon pair to carry much more data than was possible with previous methods.

Quantum entanglement could allow users to send data through a network and know immediately whether that data had made it to its destination without being intercepted or altered. With hyperentanglement, users could send much denser packets of information using the same networks.

The research, published inNature Photonics, was led by Zhenda Xie, a research scientist in the lab of Chee Wei Wong, a UCLA associate professor of electrical engineering who was the research project's principal investigator. Researchers from MIT, Columbia University, the University of Maryland and the National Institute of Standards and Technology were also part of the team.

Albert Einstein famously described quantum entanglement as "spooky action at a distance" because it seems so improbable that what happens to one particle in an entangled pair also happens instantly to the other particle, even over great distances. The phenomenon exceeds the speed of light.

In the new study, researchers sent hyperentangled photons in a shape known as a biphoton frequency comb, essentially breaking up entangled photons into smaller parts.

In secure data transfer, photons sent over fiber optic networks can be encrypted through entanglement. With each dimension of entanglement, the amount of information carried on a photon pair is doubled, so a photon pair entangled by five dimensions can carry 32 times as much data as a pair entangled by only one. The result greatly extends from wavelength multiplexing, the method for carrying many videos over a single optical fiber.

"We show that an optical frequency comb can be generated at single photon level", Zhenda Xie stated. "Essentially, we're leveraging wavelength division multiplexing concepts at the quantum level."

Potential applications for the research include secure communication and information processing, in particular for high-capacity data transfer with minimal error. This could be useful for medical servers, government data communications, financial markets and military communication channels, as well as quantum cloud communications and distributed quantum computing.

"We are fortunate to verify a decades-old theoretical prediction by Professor Jeff Shapiro of MIT, that quantum entanglement can be observed in a comb-like state", Chee Wei Wong stated. "With the help of state-of-the-art high-speed single photon detectors at NIST and support from Dr. Franco Wong, Dr. Xie was able to verify the high-dimensional and multi-degrees-of-freedom entanglement of photons. These observations demonstrate a new fundamentally secure approach for dense information processing and communications."

Co-authors on the paper are Sajan Shrestha, XinAn Xu and Junlin Liang, prior students and postdoctoral scientists at Columbia with Chee Wei Wong; Tian Zhong, professors Jeffrey Shapiro and Franco N.C. Wong of MIT; Yan-Xiao Gong of Southeast University in Nanjing, China; and Joshua Bienfang and Alessandro Restelli, affiliated with both the University of Maryland and the NIST.

The work was funded by the Defense Advanced Research Projects Agency.
Source: University of California - Los Angeles

Back to Table of contents

Primeur weekly 2015-07-06

Special

Moving up to an Open Science Commons ...

HPC in the Baltic region ...

Data Access helps its customers get the most out of their HPC investments ...

The importance of being earnest about the long tail of research ...

Comstor to simply the IP management of clusters ...

Arbor Networks to protect organisations against DDoS attacks ...

Open Science perspective highlighted at e-IRG workshop in Riga ...

Focus on Europe

IBM, NVIDIA and Mellanox launch Design Center for Big Data and High Performance Computing ...

Launch event of SuperMUC Phase 2 on June 29, 2015 ...

Bright welcomes PC Link Egypt to its Partner Network ...

Middleware

OpenMP Device Constructs ...

Bright Computing to release Version 7.1 of Bright Cluster Manager at the ISC High Performance 2015 Conference ...

Agenda announced for PBS Works User Group Meeting ...

Hardware

CoolIT Systems reaches 50th patent milestone ...

DDN outlines strategic vision driving rapid adoption of DDN high performance storage technology throughout the enterprise ...

Nallatech 510T FPGA accelerator disrupts the data centre ...

Japan Atomic Energy Agency chooses SGI ICE X for new supercomputer system ...

ADVA Optical Networking unveils all-new Data Center Interconnect solution ...

ADVA Optical Networking launches new NFV demarcation product family ...

T-Systems and ADVA Optical Networking showcase the future of Terabit networking in unique demonstration ...

DDN object storage usage grows to 200+ billion objects; now world's 2nd largest object platform behind Amazon ...

Applications

Blue Waters simulations suggest there are fewer faint galaxies than expected ...

Researcher discovers groundwater modelling breakthrough ...

Internet of Things Turning New York's Lake George Into “World’s Smartest Lake ...

Producing spin-entangled electrons ...

The quantum middle man ...

New method of quantum entanglement packs vastly more data in a photon ...

The Cloud

Computational scientist Peter Coveney keynotes at ISC Cloud & Big Data ...