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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 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 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 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 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 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 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 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 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 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 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 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 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 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
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 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 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 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 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 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 February 11, 2004 Eric Smalley	Light-storing chip charted Storing light, even briefly, was considered impossible until recently. Since scientists have proved it could be done, they've been finding different ways of accomplishing the feat. A proposal for slowing and stopping light in photonic crystal promises to bring these experiments to the chip level.
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 19, 2005	Quantum computing: qubits Quantum bits, or qubits, are the quantum equivalent of the transistors that make up today's computers. There are four established qubit candidates: ion traps, quantum dots, semiconductor impurities, and superconducting circuits.
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
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 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 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.
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 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 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 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 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.
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 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 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	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.
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 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 March 10, 2004 Eric Smalley	X-shape pulses hold together A team of researchers in Italy and Lithuanian has found that under certain conditions a pulse of light can form an X shape that does not spread out.
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 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 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.
Technology Research News January 14, 2004	Atoms make quantum coprocessor Researchers from Brussels Free University in Belgium (ULB) and the Niels Bohr Institute in Denmark have shown that the collective spin of clouds of atoms can be used to compute.
Technology Research News January 1, 2003 Eric Smalley	Electron pairs power quantum plan Researchers from HP Laboratories and Qinetiq plc in England have mapped out a way to manipulate a pair of very cold electrons that could eventually lead to practical quantum computers made from quantum dots, or tiny specks of the type of semiconductor material used in electronics.
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.
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 Eric Smalley	Speedy Photon Detector Debuts Researchers have devised a fast, efficient photon detector that senses individual photons.
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.
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.