<p>According to Physics World researchers at the University of Bristol, UK have made a prototype optical quantum computer chip and used it to perform a mathematical calculation. The device consists of tiny silica waveguides on a silicon chip and carries out a version of the quantum calculation known as Shor's algorithm. The result is an important step towards making practical, real-world quantum computers.</p>
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<p>'''Update (Sep 30, 2010)''': You can also find some information concerning this research at [http://cordis.europa.eu/search/index.cfm?fuseaction=news.document&N_LANG... CORDIS Website].</p>