On the eve of Honeywell announced the creation of the world’s most powerful quantum computing system. The Honeywell quantum computer has already been tested by JP Morgan Chase, one of the world’s largest financial institutions, and financiers have called the system “excellent.” And this is just the beginning.

It should be said that Honeywell used the new IBM metric (benchmark), which it introduced in October last year, to determine the power of its quantum computing system. It’s no secret that everyone does quantum computers. There are cryogenic qubits, and ion traps, and quantum annealing, and spintronics, and much more. Comparing the performance of systems in this zoo is very difficult, especially if you add the coherence retention time, the number of simultaneously confused qubits, the level of errors and many, many other parameters.

IBM tried to take into account, if not all, then most of these variables, and introduced a metric that allows judging conditionally objectively the performance of a quantum computing system of any architecture. However, not everyone agrees with her and, in particular, the debate about “quantum superiority” has flared up with Google. Nevertheless, there is a metric and, for example, IBM estimated the performance of its first “office” quantum computer Q System One of 20 cryogenic qubits at the level of 16 quantum volumes.

Returning to the Honeywell quantum computer, we report that its performance reaches 64 quantum volumes. Moreover, the company promises to increase the productivity of its quantum systems by one order every year over the next five years. For example, over the next year, she plans to create a quantum computing system with a capacity of 1024 quantum volumes.

In fact, the Honeywell system consists of only six “efficient” qubits in ion traps. But these are “honest” qubits, as stated in the company. In the IBM Q System One, for example, only some of the 20 qubits can be confused at a time. In the Honeywell system, all six qubits are simultaneously connected and coordinated, which makes it unique and the most powerful in the world of quantum computers. It is not difficult to calculate the performance of a quantum system with “efficient” qubits using the IBM methodology. This is the value of the degree to which the digit 2 should be raised. We get, 2^{6} – this is 64 “quantum volumes”. In fact, the six-qubit Honeywell quantum computer is four times more productive than the 20-qubit IBM Q System One. Benchmarks, they are such benchmarks. Do we not know about this?

The core of the Honeywell system is a steel sphere the size of a basketball, cooled to a temperature slightly above absolute zero (–262.7 ° C). Inside the sphere are ion traps, each of which is the size of a coin of 25 US cents (24.3 mm). The ion plays the role of a qubit, and it is controlled by a laser, which is aimed at trapping the charge from outside the sphere through a small glass window. In fact, a qubit plus a laser is an analog of a transistor in the classical sense.

In addition to JP Morgan Chase, other customers whose names the company does not disclose are testing the new Honeywell system. According to Honeywell, these are companies and organizations related to chemistry, materials science, machine learning and optimization. Later this year, Honeywell, along with Microsoft, will provide access to the new quantum computer through the Microsoft Azure cloud.

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