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Technology Research News June 15, 2005 |
Quantum Crypto Boosted to 2 GHz Researchers have upped the speed of their quantum key exchange system to 2 gigahertz over several kilometers of optical telecommunications fiber. |
Technology Research News July 27, 2005 Eric Smalley |
Quantum crypto scheme doubly fast Researchers have found a way to double the speed of information transfer over quantum cryptography systems. |
CIO April 1, 2002 John Edwards |
Secure Light Streams New technology could eventually lead to the mainstream adoption of quantum cryptography, a secure form of optical communications that's virtually impervious to hacker attacks... |
Technology Research News June 1, 2005 Eric Smalley |
Speedy Photon Detector Debuts Researchers have devised a fast, efficient photon detector that senses individual photons. |
Technology Research News September 22, 2004 Eric Smalley |
Bank Transfer Demos Quantum Crypto As quantum cryptography nears practical application, researchers are working on the next generation of the technology, which includes the weird quantum phenomenon of entanglement. |
Technology Research News January 29, 2003 Eric Smalley |
Faster quantum crypto demoed Working out how to use only standard telecommunications gear to transmit cryptographic keys could dramatically improve quantum cryptography's paltry performance. |
Industrial Physicist Jennifer Ouellette |
Quantum Key Distribution Several companies have focused on bringing one aspect of quantum communications to market, quantum key distribution, used to exchange secret keys that protect data during transmission. |
Technology Research News April 21, 2004 |
Sturdy Quantum Crypto Proposed Quantum cryptography systems promise potentially perfect security because it is impossible to eavesdrop on bits encoded in single photons without revealing the security breach. |
Technology Research News September 19, 2005 |
Two Schools of Cryptography Hard numbers vs. uncertainty: Computationally secure methods use cryptographic keys that are answers to difficult-to-solve mathematical problems. Probabilistically secure methods use cryptographic keys chosen at random from a fast source of random signals. |
Technology Research News April 21, 2004 Eric Smalley |
Optical Quantum Memory Designed Quantum computers that use photons rather than atoms or electrons are appealing because the equipment needed to handle them can be relatively simple. A scheme for trapping photons in fiber-optic loops and replacing the photons that the loops absorb could be the answer. |
Technology Research News July 14, 2004 Eric Smalley |
Quantum crypto network debuts The network is the first step toward bringing the potentially perfect security of quantum cryptography to the Internet. |
Technology Research News April 21, 2004 |
Photons Teleported Six Kilometers Real-life teleportation will never come close to the teleportation of fiction, but instantly sending single quantum particles like photons from one place to another has been proved possible in laboratory experiments and promises to extend the reach of quantum cryptography, which offers potentially perfect security. |
Technology Research News February 12, 2003 Eric Smalley |
Teleportation goes the distance Teleportation makes it possible to transmit the quantum states, or structural information, of photons from one place to another. And making photons from one location materialize at another without traveling the distance between opens the way for sending messages long distances. |
Technology Research News August 10, 2005 Eric Smalley |
Pixels speed quantum crypto Crossing quantum physics with computer displays yields a new way of encoding information in photons. Using photons as pixels lets researchers encode more information per photon, promising higher data rates for quantum cryptography. |
Technology Research News April 9, 2003 Eric Smalley |
Fiber loop makes quantum memory A relatively simple device that sends individual photons cycling through a fiber-optic loop could provide the memory needed to make ultra powerful computers that use the quantum states of light as bits. |
IEEE Spectrum October 2008 Saswato R. Das |
"Mother of All Quantum Networks" Unveiled in Vienna EU-sponsored quantum-cryptography network unparalleled in size and complexity |
Technology Research News December 29, 2004 |
Atom Demo Fixes Quantum Errors Researchers have demonstrated a way to correct errors in qubits of beryllium ions held in an electromagnetic trap. |
IEEE Spectrum August 2008 Mark Anderson |
Quantum Weirdness: Two Times Zero Doesn't Always Equal Zero Researchers think they can extract quantum information from two noisy channels that are individually useless |
Technology Research News February 25, 2004 Eric Smalley |
Simple optics make quantum relay Quantum cryptography devices and networks, which transport photons whose properties can be used to represent the 1s and 0s of digital information, could also benefit from repeaters. |
Technology Research News June 2, 2004 Eric Smalley |
Atom-Photon Link Demoed Getting atoms and photons to exchange information is crucial for many quantum computer designs. The first verified atom-photon entanglement shows that it's not so hard to do, as long as you can accept a low success rate. |
National Defense May 2012 Eric Beidel |
Air Force Seeks Impossible-to-Intercept Communications The Air Force has enlisted a group of researchers to create quantum memories based on the interaction between light and matter that would result in a new form of encryption that some experts have called "perfect." |
IEEE Spectrum March 2007 Samuel K. Moore |
Commercializing Quantum Keys It's a strange business, turning the esoteric quantum properties of light into money. But there are a few brave companies that have been trying to do just that for the last five years, and they may have hit on the right way to do it. |
Technology Research News April 6, 2005 |
Trapped Light Pulses Interact Researchers at Harvard University have showed that light pulses can be trapped and held in a rubidium vapor and made to interact with one another. The method could eventually be used in quantum cryptographic and quantum computing schemes. |
Technology Research News December 15, 2004 |
Light Writes Info Into Atoms Researchers have demonstrated that it is possible to transfer information encoded in the properties of photons to atoms. |
Technology Research News September 8, 2004 Eric Smalley |
Polymer Serves up Single Photons Researchers have made a room-temperature, single-photon source using polymer molecules that could be used in quantum cryptography devices and eventually for quantum computing |
Popular Mechanics August 26, 2008 |
Lasers Could Send World's Most Secure Messages Through Space Scientists at an Italian observatory this year succeeded in firing lasers at the mirror-covered Ajisai Japanese satellite, proving that a sequence of photons can travel great distances through space. |
Technology Research News August 25, 2004 Eric Smalley |
Five Photons Linked Researchers have entangled five photons - a key step in quantum computing which would make it possible to check computations for errors and teleport quantum information within and between computers. |
Technology Research News November 5, 2003 |
Rig fires more photon pairs Massachusetts Institute of Technology researchers have moved the field of quantum communications forward with entangled photon beams that contain specific wavelengths of light and are relatively bright. |
IEEE Spectrum June 2012 Michael Brooks |
Quantum Cash and the End of Counterfeiting Physicists say they can make money that can't be copied -- at least in theory |
IEEE Spectrum December 2008 Saswato R. Das |
Physicists Invent a Chip That Stores a Photon's Quantum State A step toward the "quantum repeaters" needed to make long-distance quantum-cryptography networks |
National Defense March 2005 Joe Pappalardo |
Researchers Cast Wary Eye On Atomic-Level Computing Experts point out that quantum computers could execute calculations several millions of times faster than conventional systems, but that the technology still is years away from becoming truly functional. |
Technology Research News March 24, 2004 Kimberly Patch |
Pulse trap makes optical switch Scientists who work with light pulses so short that one trillion of them pass by in a second are laying the groundwork for higher bandwidth communications and blazingly-fast, all-optical computer chips. |
Technology Research News April 7, 2004 Eric Smalley |
Sturdy quantum computing demoed The atomic or subatomic components of prototype quantum computers usually have to be carefully sheltered from the environment, but a method that makes qubits immune to noise shows promise. |
IEEE Spectrum November 2008 |
Q&A With Post-Quantum Computing Cryptography Researcher Jintai Ding Quantum computers may be the perennial "computer of the future," but if (or when) they do become a reality, their sheer power could threaten the security of our information-technology infrastructure. |
Technology Research News July 28, 2004 |
Particle chains make quantum wires The method is a step toward building quantum computers, which have the potential to solve certain types of very large problems. |
Technology Research News August 11, 2004 |
Speck trios make secret codes Researchers have devised a way to use quantum dots -- tiny bits of semiconductor -- to print invisible secret codes onto surfaces. The method could be used to authenticate valuable documents like passports and certificates. |
Technology Research News July 14, 2004 Eric Smalley |
Teleport lifts quantum computing Researchers transported the states of charged atoms and showed that it is possible to do so on demand. The feat boosts the prospects for building quantum computers that employ trapped ions, quantum particles that live long enough to carry out multiple computations. |
IEEE Spectrum January 2009 Monica Heger |
Cryptographers Take On Quantum Computers Researchers prepare for the day when quantum computers can easily crack today's codes. |
Technology Research News November 14, 2005 |
Quantum cryptography Quantum cryptography, which taps properties of photons to represent information, can, in theory, provide perfectly secure communications. |
IEEE Spectrum April 2008 Saswato R. Das |
Quantum Cryptography Cracked? Swedes find vulnerability in supposedly secure quantum cryptography system. |
Technology Research News April 6, 2005 |
Optics Demo Does Quantum Logic Researchers from the University of Science and Technology of China and the University of Heidelberg in Germany have demonstrated a method of using four photons to form a logic gate that can be used for quantum computing. |
Technology Research News September 10, 2003 |
Quantum computing has limits Researchers from the University of Arkansas and Texas A&M University have shown that quantum computers, while theoretically useful for very large problems, are likely to always need very large amounts of power. |
IEEE Spectrum January 2009 Saswato Das |
Ion Teleportation Scheme Could Scale Up Quantum Computers Scientists have teleported the quantum state of one trapped ion onto another a meter away |
Technology Research News December 3, 2003 Eric Smalley |
Chaotic lasers lock messages Researchers from Advanced Telecommunications Research Institute International in Japan have found a way for two people in different locations to work out a cryptographic key using the signal from the rapidly and randomly fluctuating light signal of a chaotic laser. |
Technology Research News April 6, 2005 Eric Smalley |
Scheme Reverses Light Pulses Researchers have developed a method for accurately time-reversing electromagnetic pulses, making it possible to receive a light pulse and return a replica of exactly the same size, shape and wavelength. |
Technology Research News August 11, 2004 |
Twisted fiber filters light Researchers have devised a way to control light inside optical fiber communications lines. The method could enable faster data transmission rates in fiber-optic lines and new twists on devices like lasers and sensors. |
IEEE Spectrum December 2007 Neil Savage |
Slower Light for Faster Telecom Networks Promising research could yield better optical data storage. |
Technology Research News May 21, 2003 |
Big qubits linked over distance Researchers working on quantum computing managed to entangle a pair of large quantum bits that were spaced nearly a millimeter apart. |
IEEE Spectrum October 2007 Morgen E. Peck |
Geneva Vote Will Use Quantum Cryptography A system that produces unbreakable encryption based on the quantum properties of light will be used to secure the electronic transmission of votes in a Swiss election next week. |
Technology Research News November 5, 2003 Eric Smalley |
Crystal fiber goes distance Making fiber-optic lines that are hollow is one step toward more efficient telecommunications. Making lines that are full of holes goes further. Lots of regularly spaced holes bend light, which keeps it on the straight and narrow. |