Linked by Eugenia Loli on Fri 8th Sep 2006 04:09 UTC
Geek stuff, sci-fi... Physicists at the U.S. Department of Energy's Argonne National Laboratory have devised a potentially groundbreaking theory demonstrating how to control the spin of particles without using superconducting magnets - a development that could advance the field of spintronics and bring scientists a step closer to quantum computing.
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Consider the parallel
by KenJackson on Fri 8th Sep 2006 19:59 UTC
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“We believe we've discovered a much simpler way for inducing spin polarization,” he added. “We don't need a big magnet. The only requirement in our case is an electrical current in the sample, which is much easier to achieve than putting the sample in a magnetic coil. For an electrical current, you only need two contacts.”

I can't help but compare this with the transition from vacuum tubes to transistors. Back in 1947 Bell found out that you don't need a heater and a vacuum, you can make electrons tunnel through a PN juction barrier. I wonder what advances these new "transistors" will bring.

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