PerspectiveQUANTUM OPTICS

Quantum Logic with Light, Glass, and Mirrors

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Science  13 Sep 2002:
Vol. 297, Issue 5588, pp. 1821-1822
DOI: 10.1126/science.1075871

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Summary

Quantum computers can perform many operations simultaneously, thereby speeding up the solution otherwise intractable problems. But many obstacles remain before a functioning quantum computer will be available. In his Perspective, Shields reviews recent advances toward exploiting the quantum properties of photons. The first applications are likely to be in quantum cryptography.