What’s the difference between quantum annealing and universal gate quantum computers?

Just as a GPU processes instructions related to graphics exponentially faster than a CPU, certain problems can be solved quadratically or polynomially faster with quantum algorithms, by exploiting the quantum effects of superposition and entanglement. But what is quantum annealing, and how does it differ from a universal gate quantum computer? D-Wave, the most famous quantum annealer, and universal gate quantum computing are not competitors. While they rely on the same concepts, ...

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Quantum Technology News – Issue #9

The biggest news of the week is the long-anticipated Google quantum computing announcement. The announcement states that the D-Wave machine is more than 10^8 times faster than simulated annealing running on a single core. Independent analyses by Dr. Scott Aaronson show that while the results are showing that D-Wave is becoming more mature and probably has quantum effects, the technology suffers the drawbacks of just being built on old quantum computing ...

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