Boffins go dotty over quantum teleportation
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No 'beaming up' was involved Researchers at the University of Singapore have demonstrated that it is possible to "teleport" information from one so-called quantum dot to another.â¦
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The world's biggest collider hopes to create a smorgasbord of exotic particles, from the so-called God particle to dark matter and maybe even miniature black holes. John Borland goes to the edge of theory.
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Molecular-scale carbon cylinders that receive and transmit light waves open the way for new types of communications equipment and solar cells.
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British physicists work on "clockwork" technology that promises, theoretically, billion-year accuracy.
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For physicists, this is a summer of rumors, hope and hype as rival collaborations race to capture the legendary particle known as the Higgs boson.
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This is the second article in a series of four articles each with a separate explanation of different quantum phenomena. Each article is a piece of a mosaic, so every one is needed to understand the final explanation of the quantum astronomy experiment we propose, possibly using the Allen Array Telescope and the narrow-band radio-wave detectors being build by the SETI Institute and the University of California, Berkeley.
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(InfoWorld) - IBM has demonstrated how to perform certain computer functions on single atoms and molecules, a discovery that could someday lead to processors the size of a speck of dust, the company said Thursday. Researchers at IBM's Almaden Research Center in California developed a technique for measuring magnetic anisotropy, a property of the magnetic field that gives it the ability to maintain a particular direction. Being able to measure magnetic anisotropy at the atomic level is a crucial step toward the magnet representing the ones or the zeroes used to store data in binary computer language. In a second report, researchers at IBM's lab in Zurich, Switzerland, said they had used an individual molecule as an electric switch that could potentially replace the transistors used in modern chips. The company published both research reports in Friday's edition of the journal Science. The new technologies are at least 10 years from being used for components in commercial products, but the discoveries will allow scientists to take a large step forward in their quest to replace silicon, said IBM spokesman Matthew McMahon. To build faster, smaller chips, IBM and other chip vendors like Intel and AMD have shrunk the dimensions of chip features from 90 nanometers to 65nm in the current generation of chips and plan to continue to 45nm and 32nm in coming years. The problem is that wires built from silicon tend to leak more electricity at each step on that scale and will eventually reach a limit where they are no longer useful. "Across all our areas of nanotechnology research, we're trying to determine the new kinds of materials we can use in computing when silicon reaches its fundamental limits. The ultimate goal is molecular-level computers, but the interim products will probably be hybrids with current technology, using things like carbon nanotubes," McMahon said. IBM defines nanotechnology as work done at a scale of 100nm or smaller. At that scale, scientists must use a tool called the STM (scanning tunneling microscope) to photograph and manipulate individual atoms as they did in their latest research. Their next challenge is to find a way to make these laboratory demonstrations work at room temperature, he said. Having measured the magnetic anisotropy of a single atom, "their next step is finding atoms that can do it at stable temperatures that are suitable for storage devices. If they can find that, it's still a decade out from commercialization," he said. The Zurich researchers also developed a technique for using a molecule containing two hydrogen atoms as a switch, either on its own or with an adjacent molecule. They are now looking to apply the method to many other molecules, enabling the system to work as a collection of logic gates, the building blocks of microprocessors. Even if the teams reach those goals, they must find a way to manufacture the systems on a large scale, instead of moving single atoms with the STM. One possibility is to use the process of self-assembly, where atoms under certain conditions will naturally form the desired shapes. In May, IBM said it had used that approach to insulate the wires on a chip by creating trillions of tiny, vacuum-filled holes around each one.
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No knocking off Blade Runner pleasure replicants German boffins believe they have developed a computer algorithm which can be used to hide encrypted "watermarks" within the DNA of living genetically-modified organisms. The procedure has been successful in simulated tests on live beer ingredients.â¦
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BOFFINS AND boffinettes at Imperial College London are developing a new optical disk that can store a terabyte of data. The Multiplexed Optical Data Storage (Mods)technology is expected to be released towards
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A Canadian firm is claiming to have taken a quantum leap in technology by producing a computer that can perform 64,000 calculations at once.  D-Wave Systems, Inc., based near Vancouver, says it will unveil its new quantum supercomputer Tuesday, ABC News reports.
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Researchers are developing tiny atomic clocks that could be made using standard semiconductor processes and slipped into cellphones, hand-held computers and global positioning system receivers.
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Transmission of a secret encryption key in Vienna shows that 'entangled' photons can withstand the rigors of the real world.
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IBM Corp. researchers are touting one of the tiniest pieces of art ever made &#151; an image of the sun made from 20,000 microscopic particles of gold. The precision required is a breakthrough that heralds ultra-miniature sensors, lenses and wires inside nanoscale circuits of the future.
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University of Bonn -- Physicists from the University of Bonn have succeeded in taking a decisive step forward towards processing quantum information with neutral atoms: in the latest issue of the 'Physical Review Letters' vol. 93 (2004) they describe how they managed to set up a quantum register experimentally...
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Our transporter is more Star Trek than yours Australian physicists are working on a new method of quantum teleportation which they say is closer to the visions of instant transport popularised by Star Trek.â¦
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Photodiode made from peptide molecules sends current in directions determined by light color.
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A screening of the upcoming movie âJumperâ at M.I.T. brought Hollywood and scientists together to discuss quantum physics and teleportation.