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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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles 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. mark for My Articles similar articles
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 mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
IEEE Spectrum
March 2011
Saswato R. Das
A Crowd of Quantum Entanglements Phosphorus-in-silicon system could lead to quantum computers mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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 mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
Technology Research News
February 11, 2004
Electricity teleportation devised Researchers from Leiden University in the Netherlands have devised a way to teleport electricity. mark for My Articles similar articles
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. mark for My Articles similar articles
Scientific American
March 6, 2006
Graham P. Collins
Ion Power In their quest to build a computer that would take advantage of quantum mechanics, physicists are pursuing a number of disparate technologies. Teams working with trapped atomic ions have demonstrated several landmark feats that the other approaches will be hard-pressed to match. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
CIO
March 15, 2002
John Edwards
Quantum Leap A quantum physics breakthrough could turn pipe dreams, such as ultra-high-speed quantum computers and teleportation, into real-world technologies... mark for My Articles similar articles
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 mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
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." mark for My Articles similar articles
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. mark for My Articles similar articles
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. mark for My Articles similar articles
IEEE Spectrum
September 2008
Joshua J. Romero
Physicist Named MacArthur Fellow for Work on Quantum Computing Alexei Kitaev's theoretical studies may lead the way to quantum computers that catch their own errors mark for My Articles similar articles
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. mark for My Articles similar articles
IEEE Spectrum
January 2010
Erico Guizzo
Loser: D-Wave Does Not Quantum Compute D-Wave Systems' quantum computers look to be bigger, costlier, and slower than conventional ones mark for My Articles similar articles
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. mark for My Articles similar articles
Chemistry World
July 12, 2011
Kate McAlpine
Bit Part for Diethylfluoromalonate in Reaction Model A quantum simulation has successfully described the progression of a chemical reaction for the first time. mark for My Articles similar articles
IEEE Spectrum
September 2007
Lieven Vandersypen
Dot-to-Dot Design Researchers are connecting tiny puddles of electrons in a chip and making them compute -- the quantum way. mark for My Articles similar articles
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 mark for My Articles similar articles
Technology Research News
August 11, 2004
Eric Smalley
Chips measure electron spin Practical quantum computers are at least a decade away, and some researchers are betting that they will never be built. But a pair of recent experiments may prove them wrong. mark for My Articles similar articles
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. mark for My Articles similar articles