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Er bestaat overigens ook nog enige discussie of dat die D-Wave wel daadwerkelijk een quantum computer is. Misschien ook wel relevant om te melden?<div><br></div><div>"<span style="background-color: rgb(255, 255, 255); font-family: Verdana, arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px;">Unlike the conventional approach to building quantum computers, D-Wave's philosophy sidesteps the issue of having to endow the system with a built-in tolerance against a certain degree of imperfection (an approach known as 'fault-tolerant computing'). In fact, they argue that noise might actually be a good thing, at least when using — as the D-Wave team does — heuristic algorithms such as adiabatic optimization. Allowing noise to enter the system, and stepping back to see how well the quantum algorithm performs despite all imperfections, might indeed be a good idea in view of the enormous experimental challenges posed by maintaining coherence among more than a few interacting quantum bits.</span><span style="font-size: 10pt;">"</span></div><div>+</div><div>"<span style="font-family: Verdana, arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; background-color: rgb(255, 255, 255);">Why then don't we have large-scale quantum computers already? Unfortunately, the best known thresholds values for tolerable error rates are still very demanding, between 10</span><sup style="font-family: Verdana, arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">-3</sup><span style="font-family: Verdana, arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; background-color: rgb(255, 255, 255);"> and 10</span><sup style="font-family: Verdana, arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">-5</sup><span style="font-family: Verdana, arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; background-color: rgb(255, 255, 255);">, depending on the specifics of the architecture. Even the current best experiments suffer from much higher error rates than that. To bridge the gap between theory and practice, researchers work from both sides: experimentalists try to reduce the noise levels of their systems while theorists try to design better fault-tolerant schemes that allow higher error rates.</span><span style="font-size: 10pt;">"</span></div><div><span style="font-size: 10pt;">bron (</span>http://www.nature.com/nphys/journal/v3/n4/full/nphys585.html) retrieved 6-12-2012</div><div><br></div><div>Die quantum computer lijkt dus (hoewel interessante tech) eerder een marketing ploy dan een daadwerkelijke quantum computer.</div><div><br></div><div>Groet,</div><div>Corné</div> </div></body>
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