A Wee Step Forward For The Tiniest Transistor

Quantum-effect chips are the gleam in the eyes of semiconductor scientists at AT&T Bell Laboratories, IBM, Toshiba, and other major labs worldwide. That's because the ever-shrinking transistor, which has fueled the march of computer power for three decades, will soon bump into fundamental limits of physics--unless science can harness the weird world of quantum mechanics, where solid matter can turn into energy waves and vice versa.

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