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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 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 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 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 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 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.  |
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 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.  |
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 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 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.  |
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 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  |
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.  |
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 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 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.  |
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 June 1, 2005 |
Lasers Built Into Fiber-Optics Researchers have crossed a gas-filled fiber optic laser with ordinary fiber optics to make a Raman laser and a frequency stabilizer -- devices that provide precise control of laser beams.  |
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 December 1, 2004 Eric Smalley |
Pure Silicon Laser Debuts Researchers have made a prototype laser from silicon. The laser is tunable, meaning it can lase in a range of wavelengths, or colors, and it works at room temperature.  |
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 |
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 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 April 6, 2005 |
Interference Scheme Sharpens Focus Researchers have found a way to improve the resolution of lithographic systems that could extend the lifetime of the manufacturing technique. Their proof-of-principal experiments show that the technique improves resolution by three times.  |
Technology Research News May 4, 2005 |
Noisy Snapshots Show Quantum Weirdness Researchers have devised a relatively simple way to detect a pair of entangled, or linked atoms. The detection ability advances quantum computer and quantum communications research.  |
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.  |
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 December 31, 2003 Eric Smalley |
Light frozen in place Researchers at Harvard University have trapped and held a light pulse still for a few hundredths of a millisecond.  |
Technology Research News January 26, 2005 |
Plastic Records Infrared Light Researchers have extended the sensitivity of photorefractive polymers so that they can be used at the common infrared communications frequency of 1550 nanometers.  |
Technology Research News November 3, 2004 |
Photonic Crystal Lasers Juiced Researchers have made a photonic crystal laser that is driven by electric current. The device could eventually be used as a source of single photons for quantum cryptography and communications devices.  |
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.  |
Chemistry World August 13, 2014 Andy Extance |
Photon pinball identifies chemicals from afar US scientists have pushed the range at which chemicals can be remotely identified beyond a kilometer by turning the samples themselves into lasers.  |
Technology Research News April 20, 2005 |
Spiral Laser Beam Demoed Researchers have found a way to generate helico-conical, or spiral-shaped light beams. The unusual-shaped beams are potentially useful in trapping and manipulating particles in biological and medical devices, including biochips.  |
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  |
Chemistry World January 16, 2012 Kate McAlpine |
Stripped down spectroscopy to probe single molecules Spectroscopy, a key method of identifying atoms and molecules with light, has been taken to its most fundamental level - a single photon absorbed by a single molecule.  |
IEEE Spectrum October 2005 Paniccia & Koehl |
The Silicon Solution In the future, ordinary silicon chips will move data using light rather than electrons, unleashing nearly limitless bandwidth and revolutionizing computing  |
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 March 9, 2005 |
Silicon Chip Laser Goes Continuous Useful lasers made from silicon would make it possible to move data between and within computer chips using light rather than electricity. This would make for faster chips that could be more tightly integrated with optical communications equipment.  |
Technology Research News September 24, 2003 |
Teamed lasers make smaller spots Researchers from Boston University have tapped the properties of polarization in order to focus a laser beam more tightly in space. The method could be used to scan objects in finer detail and to make finer features in processes like rapid prototyping and photolithography.  |
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 June 18, 2003 Eric Smalley |
Chip sorts colors The simple concept of proportionality is the key to a significant advance in the emerging field of integrated optics -- chips that control light rather than electricity.  |
IEEE Spectrum August 2007 Saswato R. Das |
Scheme for a Single-Photon Transistor Researchers have taken a big step toward building a really fast computer that uses light rather than electricity to perform calculations.  |
Technology Research News March 24, 2004 |
Irregular layout sharpens light Aperiodic photonic crystal could improve devices that shape, detect and filter light, including communications devices like photodetectors, demultiplexers, which sort wavelengths of light, and channel drop filters, which filter out different wavelengths.  |
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.  |
Industrial Physicist Aug/Sep 2004 Eric J. Lerner |
News: Plasmon microscopy A new technique allows far-field optical microscopy with resolutions well below the wavelength of light.  |
IEEE Spectrum August 2006 Alexander Hellemans |
Engineering Warms To Frozen Light Separate groups in the U.S. and Europe say that they have built and successfully tested more compact, rugged, and efficient means of delaying light pulses. Their work may clear the way for applications in optical switching and quantum communications.  |
Technology Research News December 3, 2003 |
Molecule does two-step Duke University researchers have found a way to make a molecule react only when it has been hit by two photons of ultraviolet light, making the molecule a controllable switch. The molecule could eventually be used in optical storage devices and in biochips.  |