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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. |
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 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 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 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 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 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 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 June 1, 2005 |
Magnetic Resonance Goes Nano Researchers have built a nuclear magnetic resonance device that has the potential to overcome the quantum bit limit because it is small enough to fit on a computer chip. |
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 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. |
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 6, 2004 Eric Smalley |
Atomic clock to sync handhelds Its physics package, or atomic works, is about the size of a grain of rice, making it potentially easy to mass produce and integrate with hand-helds and other electronics. It is accurate within 25 microseconds per day, or about a second per 126 years. |
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 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 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. |
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... |
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. |
Chemistry World July 15, 2014 Philip Ball |
Molecular clocks may probe fundamental laws A new proposal for using molecules rather than atoms for ultra-precise measurement of frequencies could help to probe whether there are fundamental laws of physics beyond the ones we know already. |
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 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. |
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. |
Chemistry World February 27, 2014 Simon Hadlington |
Quantum tunnelling sparks chemistry on cold surfaces Chemistry in deep space could be more diverse than thought after the discovery that larger atoms can quantum tunnel. |
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 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. |
Chemistry World January 10, 2013 Simon Hadlington |
Quantum timepiece ticks the right boxes In a remarkable feat of quantum horology, scientists in the US have created a clock that derives its timing mechanism from nothing more complicated than the mass of an atom. The new clock could prove to be a new way to make highly accurate measurements of atomic mass. |
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. |
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. |
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 November 17, 2004 |
Atom Flip Energy Measured Scientists have measured the energy required to flip the magnetic orientation, or spin of a single atom trapped on a surface. |
National Defense April 2011 Eric Beidel |
Pentagon Wants Off-the-Charts Computing Speeds The Defense Department awarded researchers based at the University of Pittsburgh a five-year, $7.5 million grant to build the foundation for a quantum supercomputer, a machine that can harness more power than all of the world's current computers combined. |
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 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 December 15, 2004 Eric Smalley |
Light clock promises finer time Researchers have made a prototype atomic clock that divides time on optical radiation, rather than microwave radiation. Such clocks could eventually improve global positioning systems, make space exploration more accurate, and more accurately test the laws of physics. |
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. |
IEEE Spectrum March 2011 Saswato R. Das |
A Crowd of Quantum Entanglements Phosphorus-in-silicon system could lead to quantum computers |
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 August 11, 2004 |
Single gold atoms altered The gold atom, positioned on an ultrathin film of sodium chloride, remained stable during the operation, despite the change in charge. |
Wired October 2001 Wil McCarthy |
Ultimate Alchemy Research into artificial atoms could lead to one startling endpoint: programmable matter that changes its makeup at the flip of a switch... |
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. |
Chemistry World October 2008 Philip Ball |
Column: The Crucible Redefining one second of time. |
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. |
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. |
Chemistry World September 18, 2007 Simon Hadlington |
Researchers See Electrons in a Spin Scientists in the US have successfully measured the spin polarisation state of single atoms adsorbed to a surface, bringing the prospect of quantum computing and spin-based electronics (spintronics) a step closer. |
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. |
Chemistry World February 28, 2007 Simon Hadlington |
Individual Atoms' Chemical ID Revealed Researchers have demonstrated for the first time that atomic force microscopy can be used to reveal the chemical identity of individual atoms on a surface at room temperature. |
Technology Research News January 12, 2005 |
Silicon Surfaces Speed Circuits Researchers have devised a way to use the chemistry of silicon surfaces to make smaller chip features. |
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 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. |