IBM quantum computerIBM and Google announced roughly at the same time that they plan to start to commercialize quantum computing technologies over the next few years, which would signal the exit of universal quantum computers from lab exclusivity and their entrance on the market. The two companies also predicted that in the next few years “quantum supremacy” will be achieved, which means that quantum computers will be able to solve at least some problems that can’t be solved by today’s fastest supercomputers.

#### A Race To Build The First Practical Quantum Computer

As nature itself seems to operate based on quantum mechanics, it makes sense that a quantum computer will eventually be better suited to simulate chemical reactions with better accuracy. This will result in better materials, better medicine, and better technologies, in general.

As we’ve recently seen from a Google paper, the company was able to accurately simulate a hydrogen H2 molecule. This was possible with only a 9-qubit quantum computer, so we should be able to see much more impressive simulations as the number of qubits in quantum computers grows. Both Google and IBM are expected to ship 50-qubit quantum computers in a few years.

Of course, we’ve also seen D-Wave reach as many as 2,000 qubits, but D-Wave is not a universal quantum computer; it’s more of a specialized type of quantum machine, called a quantum annealing computer. D-Wave could still turn out to be useful for certain optimization tasks, but because we’re in the early days, more experimentation will be needed to prove that usefulness.

Microsoft has also recently entered this market, with plans to build a topological quantum computer. The idea is that the qubits are more stable in a topological quantum computer, so it could bring a practical quantum more quickly to market.

Meanwhile, both Google and IBM use superconducting quantum computing technology, and other companies have invested in trapped-ion quantum computers that also promise to have better stability (but inferior performance) than superconducting quantum computers. It remains to be seen which technology will win, but so far IBM’s and Google’s projects seem to be the most promising.

#### IBM To Commercialize A 50-Qubit Quantum Computer Soon

Although IBM has been working on universal quantum computers for about two decades, D-Wave has started to steal some of its thunder by being the first to market with its quantum annealing computer. Even as IBM was the first to give everyone access to its 5-qubit universal quantum computer, we learned that Google already had a 9-qubit universal quantum computer, and that it planned to soon upgrade to a 50-qubit quantum computer.

IBM doesn’t seem to want to be left behind and forgotten in the quantum computing market, before it even materializes as a real market. For now, the company has released an easier to use Application Programming Interface (API) so that more developers can take advantage of its quantum computer over the internet without quantum physics knowledge. It has also built a 20-qubit simulator, so that the developers can already start building applications that use 20 qubits. IBM also plans to commercialize a 50-qubit quantum computer over the next few years.

It seems that both Google and IBM believe that 50 qubits are necessary to achieve “quantum supremacy.” That’s the point when a quantum computer will be able to solve problems that even the fastest supercomputer can’t.

For instance, IBM said that although the Watson AI, powered by classical computers, can *find* patterns by looking at vast amounts of data, quantum computers would be able to *see* patterns. Classical computers are great at processing vast amounts of data–as long as it has all the data–whereas quantum computers can infer and fill in the gaps. Classical computers would need to compute an enormous number of possibilities to get to the same results that quantum computers could achieve much more easily.

#### Google To Sell Access To Its Quantum Computers

The engineers at Google’s Quantum AI Laboratory published a report in Nature in which they also see a path forward to commercialization of quantum technologies within the next five years. The company was initially expected to release a 50-qubit quantum computer by 2018, but it’s not clear whether it still intends to do so or whether it wants to wait a few more years.

Either way, the company said that although it could take another decade before full error correction can be brought to quantum computers, the early quantum computers could still be of use to at least to the financial and healthcare industries. The financial industry could use quantum-assisted optimization for more accurate stock price prediction, while the healthcare industry could better simulate chemical reactions to create more effective medicine.

Google’s engineers said that for quantum computers to evolve, both better hardware and better algorithms will be needed. The company said that this is why academia and industry will need to work together over the next decade to bring more useful quantum computers to market. Google believes that in less than five years, it should be able to commercialize access to its quantum computer, as well.

Building a Quantum Community with IBM Q

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