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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. |
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 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 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 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. |
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. |
Technology Research News February 23, 2005 |
Light writes data in electrons Researchers developed a spin memory device that writes data as electron spins using lasers, stores the electrons in quantum dots, and reads spin information by applying a voltage to the quantum dots to generate photons. |
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 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 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 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 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. |
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 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 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. |
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 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. |
IEEE Spectrum August 2007 Stick et al. |
The Trap Technique In this first part of a two-part series, the authors discuss how today's computers are running out of room for classical physics to work and how working with the quantum nature of things instead of against it will open up vast new frontiers for computing. |
Technology Research News February 12, 2003 Eric Smalley |
Logic scheme gains power Researchers from the University of Notre Dame have pushed an alternative computer chip architecture a step forward by finding a way to refresh the short-lived signals the scheme uses to represent the 1s and 0s of digital information. |
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 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 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. |
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 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. |
IEEE Spectrum July 2011 Joel E. Moore |
Topological Insulators Quantum magic can make strange but useful semiconductors that are insulators on the inside and conductors on the surface |
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. |
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. |
Technology Research News September 10, 2003 |
Light drives electron logic Building a quantum computer is extremely difficult, and working models are at least one to two decades away. Researchers have taken the proposition a step forward by demonstrating a conditional logic gate made from a pair of electrons trapped in a quantum dot. |
Technology Research News February 11, 2004 |
Electricity teleportation devised Researchers from Leiden University in the Netherlands have devised a way to teleport electricity. |
IEEE Spectrum March 2011 Saswato R. Das |
A Crowd of Quantum Entanglements Phosphorus-in-silicon system could lead to quantum computers |
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 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 August 27, 2003 |
Tool sketches quantum circuits Researchers from Cambridge University in England and the Massachusetts Institute of Technology have developed a lithographic technique, dubbed erasable electrostatic lithography, that allows a quantum device to be drawn in a few hours rather than a couple of weeks. |
Technology Research News November 5, 2003 |
Electrons spin magnetic fields Spintronics researchers are looking for ways to control and use electron spin. Researchers from Cornell University and Yale University have brought the field a step forward by showing that a flow of electrons that all have the same spin can transfer angular momentum to magnetic material. |
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 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. |
IEEE Spectrum November 2010 Bedair et al. |
Spintronic Memories to Revolutionize Data Storage Superdense MRAM chips based on the bizarre property of electron spin could replace all other forms of data storage |
IEEE Spectrum February 2012 Sung & Lee |
Graphene: The Ultimate Switch Graphene could replace the transistor with switches that steer electrons just like beams of light |
PC Magazine September 26, 2007 Lisa Zyga |
Quantum Computers Get Smarter A recent innovation could make computing with light viable. |
Industrial Physicist Feb/Mar 2003 Jennifer Oullette |
Quantum dots for sale Artificial atoms illluminate biotechnology and other fields |
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 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. |
IEEE Spectrum February 2013 Rachel Courtland |
Graphene Goes the Distance in Spintronics Experiments push electron-spin signals to record lengths |
IEEE Spectrum December 2007 Sarah Adee |
Scientists Start Quest for the Silicon Quantum Computer Sandia research could link silicon circuits to quantum computers. |
Chemistry World October 9, 2007 Richard Van Noorden |
Science Behind Your Hard Drive Scoops Physics Nobel The 2007 Nobel Prize in Physics has been awarded to Frenchman Albert Fert and German Peter Grunberg, for their discovery of giant magnetoresistance. |
Wired September 2001 Mark K. Anderson |
Liquid Logic Say good-bye to the either-or binary digit. Quantum computing is riding a new wave of supercool subatomic bits that can be both 1 and 0 at once... |
Technology Research News March 12, 2003 Kimberly Patch |
Cheap solar power on deck Researchers from the University of California at Santa Barbara have come up with a new type of solar cell that may be much less expensive to manufacture than today's solar cells and can be improved to be nearly as efficient. |
Technology Research News March 9, 2005 |
Avalanches up Disk Storage Researchers have constructed a spin-valve transistor that is more sensitive to microscopic magnetic fields than the devices that read today's commercial hard drives. |
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 October 8, 2003 Eric Smalley |
Magnetic memory makes logic Magnetic memory will soon put an end to the daily annoyance of waiting while your computer boots up from its hard disk. These chips that hold data when the power is off might also be capable of a lot more. Adding a few extra wires to each memory cell could turn the chips into efficient computer processors. |