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Ever since D-Wave arrived on the scene with a type of quantum computer capable of performing a problem-solving process called annealing, questions have flown thick and fast over whether or not the system really functioned — and, if it did function, whether it was actually performing quantum computing. A new paper by researchers who have spent time with the D-Wave system appears to virtually settle this question — the D-Wave system appears to actually perform quantum annealing. It would therefore be the first real quantum computer.
Up until now, it’s been theorized that D-Wave might be a simulator of a quantum computer based on some less-than-clear benchmark results. This new data seems to disprove that theory. Why? Because it shows evidence of entanglement. Quantum entanglement refers to a state in which two distinct qubits (two units of quantum information) become linked. If you measure the value of one entangled qubit as 0, its partner will also measure 0. Measure a 1 at the first qubit, and the second qubit will also contain a 1, with no evidence of communication between them.
Researchers working with a D-Wave system have now illustrated that D-Wave qubit pairs become entangled, as did an entire set of eight qubits. (The D-Wave uses blocks of eight qubits, as shown below). [DOI: dx.doi.org... - "Entanglement in a Quantum Annealing Processor"]
Assuming the experimental evidence holds up, this fundamentally shifts the burden of proof from “Prove D-Wave is quantum,” to “Prove the D-Wave isn’t quantum.” Evidence of entanglement is the gold standard for whether or not a system is actually performing quantum computing.
originally posted by: the2ofusr1
Thanks for making this post . Very interesting stuff to say the least .Say good by to cables and WiFi I hope Now I would imagine that someone will want to hook up some sort of a billing meter on this tech . a reply to: neoholographic
Depends. We are getting to the point where we don't have enough people that understand what is going on. Smart people don't have many children. The inheritablity of intelligence is not an exact science. - See more at: www.abovetopsecret.com...
That's... not what a quantum computer is.