Quantum Annealing seems to work very efficiently, solving some intractable optimization projects that need a probabilistic solution for chemistry and data sorting optimization projects.
D-wave is now expanding into Superconducting computations, a new feature adding to its annealing stack. One thing for sure, they have many years of experience in building and fabrication of systems engineering and on-chip control circuitry expertise. perhaps, they can do better than Google, Regeti, IBM, IonQ and the rest of players. I can't wait to see a running prototype that runs faster than ion traps, has more high-fidelity qubit counts and run more complex algorithms, and deeper gates with no error.
I was reading an article discussing D-Wave's new venture, building a gate-based superconducting quantum computer. Mark Johnson of D-waver explaining why he thinks that Ion Trapping or Photonics are NOT suitable choices.
Why not ion traps?
“We tried to take an open-minded look at other qubit technologies because there are some benefits there. There’s the trapped ion approach, and that has some benefits that nature’s ions are all the same. But you move the challenge to a different part of the system. There’s not really a way of getting more than 100 ions in one trap. Then you’re going to have to have multiple traps. And how much have we really demonstrated [the ability] of an algorithm that uses multiple traps? We’ve maybe demonstrated entanglement between them but not practical use of two or three in a single algorithm. When we looked at some of that, we saw difficult challenges in terms of scaling up,” he said."
Why Not using the Photonics?
“Then photonics has its own set of challenges. Photons are nice and clean and you can hold information in coherence for a long time. But the flip side of that is it’s hard to do gates with them. They need to be able to interact, and you need some common nonlinearities, and you’ve got to now bring in some kind of atomics to do the interactions. Now, you’ve added another layer of complexity. There are good efforts on all of these different all these different qubit modality threads.”
Read the entire article here.
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