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February 22, 2005

World's Fastest OscillatingNanoMachines


Nanotechnology leapt into the realm of quantum mechanics this past winter when an antenna-like sliver of silicon one-tenth the width of a human hair oscillated in a lab in a Boston University basement. With two sets of protrusions, much like the teeth from a two-sided comb or the paddles from a rowing shell, the antenna not only exhibits the first quantum nanomechanical motion but is also the world’s fastest moving nanostructure.

A team of Boston University physicists led by Assistant Professor Pritiraj Mohanty developed the nanomechanical oscillator. Operating at gigahertz speeds, the technology could help further miniaturize wireless communication devices like cell phones, which exchange information at gigahertz frequencies. But, more important to the researchers, the oscillator lies at the cusp of classic physics, what people experience everyday, and quantum physics, the behavior of the molecular world.
Comprised of 50 billion atoms, the antenna built by Mohanty’s team is so far the largest structure to display quantum mechanical movements.

Complete Article

Posted by thinkingmachine at February 22, 2005 07:39 PM

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