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If you listen to the hype surrounding quantum computing, you might think the near future shown in Alex Garlands sci-fi seriesDevs is upon us that we have computers complex enough to recreate time and space and reconstruct the human mind. Far from it. At this still-early stage, quantum computers promise much more than they can deliver, but the technology is poised, writes IBM to transform the way you work in research. The company does have as do most other other big makers of what are now called classical computers a roadmap for implementing quantum computing and a lot of cool new technology (such as the quantum runtime environment Quiskit) built around the qubit, the quantum computer version of the classical bit.

The computer bit, as we know, is a binary entity: either 1 or 0 and nothing in-between. The qubit, on the other hand, mimics quantum phenomena by remaining in a state of superposition of all possible states between 1 and 0 until users interact with it, like a spinning coin that only lands on one face if its physically engaged. And like quantum particles, qubits can become entangled with each other. Thus, Quantum computers work exceptionally well for modeling other quantum systems, writes Microsoft, because they use quantum phenomena in their computation. The possibilities are thrilling, and a little unsettling, but no ones modeling the universe, or even a part of it, just quite yet.

Use cases are largely experimental and hypothetical at this early stage, McKinsey Digital writes in a report for businesses, while also noting that usable quantum systems may be on the market as early as 2030. If the roadmaps serve, thats just around the corner, especially given how quickly quantum computers have evolved in relation to their (exponentially slower) classical forebears. From the first idea of a quantum computer in 1980 [an idea attributed to Nobel prize-winning physicist Richard Feynman] to today, there has been a huge growth in the quantum computing industry, especially in the last ten years, says Dominic Walliman in the video above, with dozens of companies and startups spending hundreds of millions of dollars in a race to build the worlds best quantum computers.

Walliman offers not only a (non-hyped) map of the possible future, but also a map of quantum computings past. He promises to clear up misconceptions we might have about the different kinds of quantum computing, how they work, and why so many people are investing in the quantum computing industry. Weve previously seen Wallimans Domain of Science channel do the same for such huge fields of scientific study as physics, chemistry, math, and classical computer science. Here, he presents cutting-edge science on the cusp of realization, explaining three essential ideas superposition, entanglement, and interference that govern quantum computing. The primary difference between quantum and classical computing from the point of view of non-specialists is algorithmic speed: while classical computers could theoretically perform the same complex functions as their quantum cousins, they would take ages to do so, or would halt and fizzle out in the attempt.

Will quantum computers be able to simulate nature down to the subatomic level in the future? McKinsey cautions, experts are still debating the most foundational topics for the field. Despite the industrys rapid growth, its not yet clear, Walliman says, which approach among the many he surveys will win out in the long run. But if the roadmaps serve, we may not have to wait long to find out.

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Josh Jonesis a writer and musician based in Durham, NC. Follow him at@jdmagness

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The Animated Map of Quantum Computing: A Visual Introduction to the Future of Computing - Open Culture