Author： Kwiat P.G. Mitchell J. R. Schwindt P. D. D. White A G.
Publisher： Taylor & Francis Ltd
ISSN： 1362-3044
Source： Journal of Modern Optics, Vol.47, Iss.2-3, 2000-02, pp. : 257-266
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Abstract
The essential operations of a quantum computer can be accomplished using solely optical elements, with different polarization or spatial modes representing the individual qubits. We present a simple all-optical implementation of Grover's algorithm for efficient searching, in which a database of four elements is searched with a single query. By 'compiling' the actual set-up, we have reduced the required number of optical elements from 24 to only 12. We discuss the extension to large databases, and the limitations of these techniques.
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