August 17th, 2007 by ketyung
The researchers of University of Michigan have found a breakthrough way that can decipher encrypted data in seconds, which currently can only be done in dozens of years using modern high-end desktop computers. This new way of cryptography involves the use of light, which is some kind of extremely short pulses of light to be emitted and interact with something called “quantum dots“. The quantum dots here simply sound a little bit abstract to some people. But just take it as extremely small structures that are highly sensitive to small changes.
The final device if successfully constructed will be one kind that requires many thousands of quantum dots, which light beam is encoded within and sent to the quantum dots to get all possible answers computed in seconds. This super device would definitely be the ideal one for solving many complex computational problems other than just for cryptography.
Another advantage of the “quantum dots” technology needs only inexpensive diode lasers as its light source. So, it wouldn’t be too far from now for the possibility of these super speedy quantum computers to hit the industry. Such a speedy device is definitely the dream machine that hackers have been waiting for. So, what is the hint for our future computer industry? We should be glad that there is such a super speedy computer available for helping solve much more complex computational problems in matter of seconds only. But, it would be definitely much tougher for the industry to handle protection for sensitive information.
via [eNgAdGEt]
quantum dots,quantum computer,cryptography,quantum technology for encryption
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August 18th, 2007 at 5:10 pm
In recent years, considerable progress has been made in the development of advanced sensors, capable of detecting increasingly complex signal patterns. Hyperspectral imagers, for instance, that acquire data resolved not only in space but also spectrally (i.e., at many wavelengths), enable the extraction of unique characteristics, unobtainable by other means.The ongoing trend toward sensor miniaturization provides a strong incentive to develop computational capabilities for processing the rich signal information at the sensor’s scale. A major step toward developing computational “brain” power to speed up the processing of signal patterns is being taken by a multidisciplinary nanotechnology project at ORNL, supported partly by internal funding from the Laboratory Directed Research and Development Program. Researchers at the Laboratory are fabricating a nanoscale pattern-recognition device, using gold nano-particles on a DNA template, which may eventually prove the feasibility of this concept.
October 17th, 2007 at 8:51 am
[...] According to the UB group, there are also several other groups have recently reported the successful trapping of a single spin. But their ways of doing it are by the use of quantum dots under extremely cold temperature, below 1 degree Kelvin that would cause devices to be more sensitive to interference. For the UB group, they managed to trap and detect the spin at temperatures of about 20 degrees Kelvin, which is the condition that seems more promising for for the development of a viable technology. Now, they have successfully mastered the way for detecting single spin of electron, the next is to move on i.e. to figure out how to trap and detect two or more spins. [...]