Linked by Thom Holwerda on Mon 20th Feb 2012 22:53 UTC
Hardware, Embedded Systems "A group of researchers has fabricated a single-atom transistor by introducing one phosphorous atom into a silicon lattice. Through the use of a scanning tunnelling microscope and hydrogen-resist lithography, Martin Fuechsle et al. placed the phosphorous atom precisely between very thin silicon leads, allowing them to measure its electrical behavior. The results show clearly that we can read both the quantum transitions within the phosphorous atom and its transistor behavior. No smaller solid-state devices are possible, so systems of this type reveal the limit of Moore's law - the prediction about the miniaturization of technology - while pointing toward solid-state quantum computing devices."
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RE[2]: We can (well I can't)
by Alfman on Thu 23rd Feb 2012 15:02 UTC in reply to "RE: We can (well I can't)"
Alfman
Member since:
2011-01-28

zima,

"Strings are not particles sort of by definition; and there wouldn't be 'smaller' beyond elementary ones."

The theory, which is a clever interpretation of the statistical data we have available, could never the less be wrong. But yes it seems the OP jumped to the conclusion that strings could be "reprogrammed"; that might invalidate the premise that they are already programmed as they are to explain the universal laws of physics. Changing them would in affect create a different universe.

"3D chips aren't about miniaturisation (plus I believe they have the usual, if not more severe, power dissipation issues)"


3D chips will undoubtedly offer tremendous gains, yes the heat dissipation is a bummer. But what about superconductors?

Or here's another idea for thermal computers...
(no idea about the plausibility of such a thing though)

http://spectrum.ieee.org/biomedical/devices/thermal-transistor-the-...

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