Similar Articles

Browse Main Topics:

Business
Computers & Electronics
Education & Reference
Entertainment & Leisure
Family & Home
Finance & Investment
Health
Internet
Pets & Animals
Science & Technology
Society, Politics & Culture
Sports & Recreation

Similar Articles

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 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.
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	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 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.
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 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 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.
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.
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 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 March 10, 2004	Atom spouts photons on demand California Institute of Technology researchers have fashioned a single atom into a light source that generates single photons on demand.
Technology Research News December 1, 2004	Demo Advances Quantum Networking Researchers have transferred information stored in the properties of a cloud of rubidium atoms to the properties of a single photon. The ability to transfer information from atoms to photons is needed for quantum computers.
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.
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 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.
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 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.
Technology Research News March 9, 2005	Quantum Crypto Scheme Goes One-Way Quantum cryptography researchers from Toshiba Research have demonstrated a one-way quantum key distribution system that automatically compensates for phase drift.
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.
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 January 28, 2004	Technique detects quantum state Researchers from the University of Rome in Italy have pushed theorized "perfect" quantum cryptography schemes forward by demonstrating a method for detecting quantum entanglement among subatomic particles.
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."
Technology Research News October 20, 2004	Crystal links ultraviolet photons Researchers from Tohoku University in Japan have moved the quest to control entanglement forward with a method that uses the energy from a pair of photons to produce a pair of entangled photons that have the same energy state as the original photons
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.
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.
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
IEEE Spectrum April 2008 Saswato R. Das	Quantum Cryptography Cracked? Swedes find vulnerability in supposedly secure quantum cryptography system.
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 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
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.
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.
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
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
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...
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.
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 September 24, 2003 Eric Smalley	Laser made from single atom The simplest possible laser -- a single atom -- has been on the drawing board for decades. Researchers have finally achieved the extremely precise control needed to make a laser from just one atom. The first demonstration of a single-atom laser showed that it's a different animal -- it produces quantum light.
Technology Research News December 11, 2002 Eric Smalley	Design links quantum bits Realizing the potential of phenomenally fast quantum computers means having to link thousands of quantum bits, which are the transistors of such computers. So far researchers have been able to connect only a few. A scheme for linking many tiny superconducting loops may pull it all together.
Technology Research News February 26, 2003 Eric Smalley	Quantum computing catches the bus National Institute of Standards and Technology (NIST) researchers have tapped an aspect of classical computers and a pair of weird particle traits to allow distant particles, or qubits, to communicate as though they were in contact.
Scientific American August 2007 JR Minkel	The Gedanken Experimenter In putting teleportation, entanglement and other quantum oddities to the test, physicist Anton Zeilinger hopes to find out just how unreal quantum reality can get.
Scientific American January 2009 Charles Q. Choi	Quantum Entanglement Benefits Exist After Links Are Broken A way for quantum benefits to survive after entanglement ends
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.
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 November 3, 2004 Eric Smalley	Single Field Shapes Quantum Bits Researchers have recently realized that it may be possible to control the electrons in a quantum computer using a single magnetic field rather than having to produce extremely small, precisely focused magnetic fields for each electron.
Technology Research News March 12, 2003 Eric Smalley	Quantum chips advance Researchers have entangled a pair of electronic qubits in an integrated circuit. The work is a milestone on the road to chip-based, mind-bogglingly fast quantum computers.
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 July 2, 2003	Big sites hoard links University of London researchers have uncovered another clue about the Internet's structure -- the rich-club phenomenon. Large, well-connected nodes have more links to each other than to smaller nodes, and smaller nodes have more links to the larger nodes than to each other.
BusinessWeek March 15, 2004 John Carey	Physics: "Putting The Weirdness To Work" Scientists say quantum materials will be the basis for amazing devices, but when?
Technology Research News December 15, 2004	Scheme Simplifies Quantum Chips Researchers have brought practical quantum computers a step closer by proposing a type of quantum bit that is relatively easy to build.