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Packing electrons into an artificial atom.
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Science News
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February 20, 1993
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Copyright informationCOPYRIGHT 1993 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Over the years, researchers have prodded, stretched, squeezed, illuminated, and even smashed atoms into yielding their quantum secrets. Now they can create and tailor "artificial atoms" to study the behavior of individual electrons confined to spaces much larger than atomic dimensions.
Such novel structures allow researchers to investigate certain quantum effects under conditions not possible in ordinary atoms. "There's a continuum of physics to study as you vary the size," says Raymond C. Ashoori of the Massachusetts Institute of Technology.
Ashoori described the fabrication of an artificial atom and the result of adding electrons to it one by one this week in Boston ...
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