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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 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	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 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 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 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 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 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 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 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 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 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.
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 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.
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 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 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 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 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 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.
IEEE Spectrum March 2011 Saswato R. Das	A Crowd of Quantum Entanglements Phosphorus-in-silicon system could lead to quantum computers
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 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 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 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 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 February 11, 2004	Electricity teleportation devised Researchers from Leiden University in the Netherlands have devised a way to teleport electricity.
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.
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 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.
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...
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 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 August 13, 2003 Eric Smalley	Quantum computer keeps it simple Controlling fleeting quantum particles usually requires making extraordinarily precise devices. A proposal that calls for chaperoning pairs of particles and getting all of the particles in a quantum computer to sing the same tune could ease this burden.
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 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 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 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 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 29, 2003 Eric Smalley	Quantum computers go digital One of the challenges of building a quantum computer is reducing errors. Researchers from the University of Wisconsin at Madison have eased the problem with a method that reduces error rates by two orders of magnitude.
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 January 14, 2004 Eric Smalley	Quantum dice debut Researchers have overcome a major obstacle to generating random numbers on quantum computers by limiting the possibilities in the otherwise unlimited randomness of a set of quantum particles.
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 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 10, 2003 Eric Smalley	Electron teams make bigger qubits Making quantum computers from electronic chips rather than cumbersome laboratory equipment requires control over individual electrons. A scheme that has a string of electrons acting as one could ease the task by expanding the target to a whopping 250 millionths of a millimeter.
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 June 1, 2005 Eric Smalley	Speedy Photon Detector Debuts Researchers have devised a fast, efficient photon detector that senses individual photons.
Scientific American October 17, 2005 Graham P. Collins	Quantum Bug Physicists must overcome a fundamental obstacle before quantum computers can become a practical reality: decoherence, which is the loss of the very quantum properties that such computers would rely on.