Quantcast

Latest Quantum computer Stories

7cb685f2074c8cf8a720a970ccf610ae1
2010-06-23 14:18:17

The remarkable ability of an electron to exist in two places at once has been controlled in the most common electronic material "“ silicon - for the first time. The research findings - published in Nature by a UK-Dutch team from the University of Surrey, UCL (University College) London, Heriot-Watt University in Edinburgh, and the FOM Institute for Plasma Physics near Utrecht - marks a significant step towards the making of an affordable "quantum computer". According to the research...

2010-06-22 08:00:00

CAMBRIDGE, Mass., June 22, 2010 /PRNewswire/ -- Raytheon Company's (NYSE: RTN) BBN Technologies has achieved a major advance in quantum information technology with the coupling of light and superconductors. The achievement is described in a paper, "Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom," that was recently published in Physical Review Letters. Written by three Raytheon BBN physicists, William R. Kelly, Zachary Dutton, and Thomas A. Ohki,...

c7e6ab521ca9158a8f646fed5ee593371
2010-06-07 13:56:45

Any physical system - be it an electron, a molecule of water, a virus, a human being, a whole planet "“ is characterized at each moment in time distinctively and specifically in a specific place by particular characteristics. This is what we call the "state of the system", but when one tries to describe said "state" precisely according to our current knowledge of the laws governing the universe, it is necessary to appeal to abstract formulations since the laws of quantum physics, the...

b42374dbb87417afb15c1cdd623048041
2010-06-03 07:54:10

For most people, frustration is a condition to be avoided. But for scientists studying certain "frustrated" ensembles of interacting components "“ that is, those which cannot settle into a state that minimizes each interaction "“ it may be the key to understanding a host of puzzling phenomena that affect systems from neural networks and social structures to protein folding and magnetism. Frustration has typically been extremely difficult to study because even systems with...

dd24c0e20f49bfadf0c3f314e630b6831
2010-05-26 10:09:48

Despite a steady improvement in the speed of conventional computers during the last few decades, certain types of problems remain computationally difficult to solve. Quantum computers hold the promise of offering a new route to solving some classes of these problems, such as breaking encryptions. The tremendous computing power of these devices stems from their use of quantum systems, called "qubits," which can exist in a "superposition" of two states at the same time "“ in stark...

fc73b59e8d2af9f2dd23b2c35269d2951
2010-05-24 12:40:00

On Monday, Australian scientists unveiled the world's smallest electronic switch measuring just a few atoms, which will shrink microchips and revolutionize computing speeds. The seven-atom transistor is the first step in a "quantum computer" which will make calculations millions of times faster than existing devices. Michelle Simmons, the lead researcher, said the technology has major implications for code breaking, financial transactions and weather forecasting, which involve testing...

84d9bb3a80eeaf9055724d79c239f19e1
2010-05-11 12:54:04

McGill researchers make important contribution to the development of quantum computing Physicists at McGill University have developed a system for measuring the energy involved in adding electrons to semi-conductor nanocrystals, also known as quantum dots "“ a technology that may revolutionize computing and other areas of science. Dr. Peter Grtter, McGill's Associate Dean of Research and Graduate Education, Faculty of Science, explains that his research team has developed a cantilever...

2010-05-02 08:57:39

A team of scientists at UC Santa Barbara that helped pioneer research into the quantum properties of a small defect found in diamonds has now used cutting-edge computational techniques to produce a road map for studying defects in alternative materials. Their new research is published in the online edition of the Proceedings of the National Academy of Sciences (PNAS), and will soon be published in the print edition of the journal. The findings may enable new applications for semiconductors...

9b31a9d68d45cb7dba6bfe4c192feb3d1
2010-04-28 09:40:18

Scientists at the National Institute of Standards and Technology (NIST) have developed the first "dimmer switch" for a superconducting circuit linking a quantum bit (qubit) and a quantum bus"”promising technologies for storing and transporting information in future quantum computers. The NIST switch is a new type of control device that can "tune" interactions between these components and potentially could speed up the development of a practical quantum computer. Quantum computers, if...

7fe69edfdb122f43d4f5962bb4dd811b1
2010-04-21 14:48:27

Rice physicists: Odd electron mix has fault-tolerant quantum registry HOUSTON -- There are enticing new findings this week in the worldwide search for materials that support fault-tolerant quantum computing. New results from Rice University and Princeton University indicate that a bizarre state of matter that acts like a particle with one-quarter electron charge also has a "quantum registry" that is immune to information loss from external perturbations. The research appeared online...


Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
Related