From: fudley (fuddley@fastmail.fm)
Date: Sun Jul 25 2004 - 09:13:47 MDT
There is an interesting paper in the July 22 issue of Nature, a UCLA
team succeeded in flipping a single electron spin upside down in an
ordinary commercial transistor chip, and detected that the current
changes when the electron flips.
Hong Wen Jiang, a UCLA professor of physics and member of the California
NanoSystems Institute, in whose laboratory the experiments were
conducted said, "Our research demonstrates that an ordinary transistor,
the kind used in a
desktop PC or cell phone, can be adapted for practical quantum
computing,
The research makes quantum computing closer and more practical. I would
not be surprised one day to see a quantum computer built, based almost
entirely on silicon technology.
Eli Yablonovitch, co-author of the Nature paper said,
"We've done this with a commercial silicon integrated circuit chip,
literally off a shelf. We've manipulated one spin, a year from now,
manipulating a single spin might be all in a day's work, and in 10
years,
perhaps it will have a commercial role. With 100 transistors, each
containing one of these electrons, you could have the implicit
information storage that corresponds to all of the hard disks made in
the world this year, multiplied by the number of years the universe has
been around. And why stop with 100
transistors?"
John K Clark
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