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The Lead

Nanoscale mirrored cavities amplify, connect quantum memories

January 28, 2015 8:11 am | by Karen McNulty Walsh, Brookhaven National Laboratory | News | Comments

The idea of computing systems based on controlling atomic spins just got a boost from new research performed at MIT and Brookhaven National Laboratory. By constructing tiny "mirrors" to trap light around impurity atoms in diamond crystals, the team dramatically increased the efficiency with which photons transmit information about those atoms' electronic spin states, which can be used to store quantum information.

Navy wants to increase use of sonar-emitting buoys

January 25, 2015 12:18 pm | by Phuong Le, Associated Press | News | Comments

The U.S. Navy is seeking permits to expand sonar and other training exercises off the Pacific...

Scientists set quantum speed limit

January 23, 2015 8:01 am | by Robert Sanders, Univ. of California, Berkeley Media Relations | News | Comments

Scientists have proved a fundamental relationship between energy and time that sets a “quantum...

Single-photon emission enhancement

January 14, 2015 8:01 am | by Emil Venere, Purdue Univ. | News | Comments

Researchers have demonstrated a new way to enhance the emission of single photons by using "...

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Toward quantum chips

January 9, 2015 8:10 am | by Larry Hardesty, MIT News Office | News | Comments

A team of researchers has built an array of light detectors sensitive enough to register the arrival of individual light particles, or photons, and mounted them on a silicon optical chip. Such arrays are crucial components of devices that use photons to perform quantum computations.

Quantum hard drive breakthrough

January 8, 2015 9:50 am | by Phil Dooley, The Australian National Univ. | News | Comments

Physicists developing a prototype quantum hard drive have improved storage time by a factor of more than 100. The team’s record storage time of six hours is a major step towards a secure worldwide data encryption network based on quantum information, which could be used for banking transactions and personal emails.

Steering a quantum path to improved Internet security

January 7, 2015 7:33 am | by Michael Jacobson, Griffith Univ. | News | Comments

Research conducted at Griffith Univ. may lead to greatly improved security of information transfer over the Internet. In a paper published in Nature Communications, physicists from Griffith's Centre for Quantum Dynamics demonstrate the potential for "quantum steering" to be used to enhance data security over long distances, discourage hackers and eavesdroppers and resolve issues of trust with communication devices.

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Hackers could make smart homes stupid

January 6, 2015 4:40 pm | by Jennifer Donovan, Michigan Technological Univ. | News | Comments

If a hacker got to every smart home in a neighborhood, utility bills would shoot up and brownouts, if not blackouts, would be imminent. It’s a cybersecurity nightmare. And it’s exactly what one Michigan Technological Univ.'s Shiyan Hu is working to prevent. His research focuses on hardware and system security for smart devices, ones with chips embedded that respond to a central controller powered by Wi-Fi.

A look at North Korea's limited internet capabilities

December 23, 2014 11:07 am | by Tong-Hyun Kim and Youkyung Lee - Associated Press | News | Comments

An hours-long Internet outage Tuesday in one of the world's least-wired countries was probably more inconvenient to foreigners than to North Korean residents, most of whom have never gone online. Even for wired Koreans south of the heavily armed border separating the rivals, the temporary outage made little difference - southerners are banned by law from accessing North Korean websites.

The Next Big Things

December 15, 2014 3:38 pm | by Paul Livingstone | Articles | Comments

The Internet is a massive place, linking billions of devices which share data that should exceed the zettabyte mark by 2016. Even as data transfer grows, the number of devices connected to the Internet will soon experience a geometric rise as well.

Fraud-proof credit cards possible with quantum physics

December 15, 2014 3:11 pm | by Lyndsay Meyer, The Optical Society | News | Comments

Credit card fraud and identify theft are serious problems for consumers and industries. Though corporations and individuals work to improve safeguards, it has become increasingly difficult to protect financial data and personal information from criminal activity. Fortunately, new insights into quantum physics may soon offer a solution.

App triggers horrible traffic for locals

December 15, 2014 10:17 am | by Associated Press, John Rogers | News | Comments

When the people whose houses hug the narrow warren of streets paralleling the busiest urban freeway in America began to see bumper-to-bumper traffic crawling by their homes a year or so ago, they were baffled. When word spread that the explosively popular new smartphone app Waze was sending many of those cars through their neighborhood in a quest to shave five minutes off a daily rush-hour commute, they were angry and ready to fight back.

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Control on shape of light particles opens the way to quantum Internet

December 15, 2014 8:53 am | by Eindhoven Univ. of Technology | News | Comments

In the same way as we now connect computers in networks through optical signals, it could also be possible to connect future quantum computers in a quantum Internet. The optical signals would then consist of individual light particles or photons. One prerequisite for a working quantum Internet is control of the shape of these photons.

New theory could yield more reliable communication protocols

December 12, 2014 7:54 am | News | Comments

Researchers have begun to describe theoretical limits on the degree of imprecision that communicating computers can tolerate, with very real implications for the design of communication protocols.                                   

The gold standard

December 9, 2014 5:37 pm | News | Comments

Precious elements such as platinum work well as catalysts in chemical reactions, but require large amounts of metal and can be expensive. However, computational modeling below the nanoscale level may allow researchers to design more efficient and affordable catalysts from gold.

Study makes case for RFID forensic evidence management

December 5, 2014 10:10 am | by NIST | News | Comments

Radio frequency identification (RFID) tags have become increasingly popular for tracking everything from automobiles being manufactured on an assembly line to zoo animals in transit to their new homes. Now, thanks to a new NIST report, the next beneficiaries of RFID technology may soon be law enforcement agencies responsible for the management of forensic evidence.

Smaller lidars could allow UAVs to conduct underwater scans

December 4, 2014 8:06 am | by Rick Robinson, Georgia Institute of Technology | News | Comments

Bathymetric lidars are used today primarily to map coastal waters. At nearly 600 lbs, the systems are large and heavy, and they require costly, piloted aircraft to carry them. A team at the Georgia Tech Research Institute has designed a new approach that could lead to bathymetric lidars that are much smaller and more efficient than the current full-size systems.

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Brain’s reaction to virtual reality

November 25, 2014 7:42 am | by Stuart Wolpert, Univ. of California, Los Angeles | News | Comments

Univ. of California, Los Angeles neurophysicists have found that space-mapping neurons in the brain react differently to virtual reality than they do to real-world environments. Their findings could be significant for people who use virtual reality for gaming, military, commercial, scientific or other purposes.

Terahertz device could strengthen security

November 24, 2014 11:12 am | by Northwestern Univ. | News | Comments

We are all familiar with the hassles that accompany air travel. We shuffle through long lines, remove our shoes, and carry liquids in regulation-sized tubes. And even after all the effort, we still wonder if these procedures are making us any safer. Now a new type of security detection that uses terahertz radiation is looking to prove its promise.

Overcoming limitations of magnetic storage

November 24, 2014 7:49 am | by Emil Venere, Purdue Univ. | News | Comments

Researchers at Nano-Meta Technologies Inc. have shown how to overcome key limitations of a material that could enable the magnetic storage industry to achieve data-recording densities far beyond today's computers. The new technology could make it possible to record data on an unprecedented small scale using tiny "nanoantennas" and to increase the amount of data that can be stored on a standard magnetic disk by 10 to 100 times.

New technology may speed up, build awareness of landslide risks

November 20, 2014 9:18 am | by David Stauth, Oregon State Univ. | News | Comments

Engineers have created a new way to use lidar technology to identify and classify landslides on a landscape scale, which may revolutionize the understanding of landslides in the U.S. and reveal them to be far more common and hazardous than often understood. The new, non-subjective technology can analyze and classify the landslide risk in an area of 50 or more square miles in about 30 mins.

Moving cameras talk to each other to identify, track pedestrians

November 13, 2014 10:11 am | by Michelle Ma, Univ. of Washington | Videos | Comments

It’s not uncommon to see cameras mounted on store ceilings, propped up in public places or placed inside subways, buses and even on the dashboards of cars. Cameras record our world down to the second. This can be a powerful surveillance tool on the roads and in buildings, but it’s surprisingly hard to sift through vast amounts of visual data to find pertinent information, until now.

A piece of the quantum puzzle

November 12, 2014 3:59 pm | by Julie Cohen, Univ. of California, Santa Barbara | News | Comments

While the Martinis Lab at the Univ. of California, Santa Barbara has been focusing on quantum computation, they have also been exploring qubits for quantum simulation on a smaller scale. The team worked on a new qubit architecture, which is an essential ingredient for quantum simulation, and allowed them to master the seven parameters necessary for complete control of a two-qubit system.

Lighter, cheaper radio wave device could transform telecommunications

November 12, 2014 11:18 am | by Sandra Zaragoza, The Univ. of Texas at Austin | News | Comments

Researchers at The Univ. of Texas at Austin have achieved a milestone in modern wireless and cellular telecommunications, creating a radically smaller, more efficient radio wave circulator that could be used in cellphones and other wireless devices, as reported in Nature Physics. The new circulator has the potential to double the useful bandwidth in wireless communications by enabling full-duplex functionality.

Atomic timekeeping, on the go

November 12, 2014 7:58 am | by Jennifer Chu, MIT News Office | News | Comments

What time is it? The answer, no matter what your initial reference may be, will always trace back to the atomic clock. The international standard for time is set by atomic clocks—room-sized apparatuses that keep time by measuring the natural vibration of atoms in a vacuum. The frequency of atomic vibrations determines the length of one second.

Lord of the microrings

October 31, 2014 8:39 am | by Lynn Yarris, Lawrence Berkeley National Laboratory | News | Comments

A significant breakthrough in laser technology has been reported by Lawrence Berkeley National Laboratory and the Univ. of California, Berkeley. The team of scientists have developed a unique microring laser cavity that can produce single-mode lasing even from a conventional multi-mode laser cavity.

IBM, Repsol launch world’s first cognitive technologies collaboration for the oil industry

October 30, 2014 11:46 am | Videos | Comments

Scientists at IBM and leading global energy company Repsol S.A. announced this week the world’s first research collaboration to leverage cognitive technologies that will help transform the oil and gas industry. IBM and Repsol are jointly developing two prototype cognitive applications specifically designed to augment Repsol’s strategic decision making in the optimization of oil reservoir production and in the acquisition of new oil fields.

NIST “combs” atmosphere to measure greenhouse gases

October 30, 2014 8:36 am | by Laura Ost, NIST | News | Comments

By remotely "combing" the atmosphere with a custom laser-based instrument, researchers from NIST, in collaboration with researchers from the National Oceanic and Atmospheric Administration (NOAA), have developed a new technique that can accurately measure—over a sizeable distance—amounts of several of the major "greenhouse" gases implicated in climate change.

Projecting a robot’s intentions

October 29, 2014 1:27 pm | by Jennifer Chu, MIT | Videos | Comments

Inside Massachusetts Institute of Technology’s Building 41, a small, Roomba-like robot is trying to decided where to go. As the robot considers its options, its “thoughts” are projected on the ground in the form of different colored dots and lines. This new visualization system, called “measurable virtual reality”, combines projectors with motion-capture technology and animation software to project a robot’s intentions in real time.

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