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New Hybrid Technology Could Bring 'quantum Information Systems'

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This design of a metamaterial has a "hyperbolic dispersion" not found in any conventional material, potentially producing quantum-optical applications.

Credit: Vladimir Shalaev / Purdue University

Purdue University researchers are developing technology that could lead to a new approach to quantum computing. The quantum information processing technology would use metamaterials combined with tiny optical emitters that could be used to make quantum light in future computers. The technology relies on using single photons for switching and routing in future computers that could harness the properties of quantum mechanics.

"A seamless interface between plasmonics and nanophotonics could guarantee the use of light to overcome limitations in the operational speed of conventional integrated circuits," says Purdue professor Vladimir Shalaev. Another approach is to use hyperbolic metamaterials. "The challenge here is to increase the efficiency of generation of single photons in a broad spectrum, and that is where plasmonics and metamaterials come in," Shalaev says.

Harvard University researchers also developed an approach involving a tiny nanowire that couples individual photons and plasmons.

From Purdue University
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Abstracts Copyright © 2011 Information Inc., Bethesda, Maryland, USA


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