Quantum Leap
CIO, March, 2002 by John Edwards
A quantum physics breakthrough could turn pipe dreams, such as ultra-high-speed quantum computers and teleportation, into real-world technologies.
Eugene Polzik and his coresearchers at Denmark's University of Aarhus have managed to raise the mysterious concept of quantum entanglement—a link between two or more particles that have no physical contact—to an unprecedented scale. The team gathered two clouds of cesium gas, each containing about a trillion atoms, into separate, sealed vessels. They then shined a laser through both clouds. For a split second, the clouds became entangled, and magnetic changes in one instantly affected the other. The previous entanglement record was a mere four atoms.
The development could lead to the creation of computers and...
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