New quantum computer Borealis achieves computational advantage

Quantum computer breakthroughs seem to happen all the time, but nevertheless, the technology has not seen widespread use.

Now, Canadian company Xanadu Quantum Technologies has achieved an impressive feat with a new device that can outperform any supercomputer in the world on one particular task, According to the article by The Globe and Mail Posted on Wednesday.

achieve a quantitative advantage

Xanadu built a quantum computer named Borealis that achieved a “quantum advantage,” providing a fast result that exceeds the current capability of conventional computer systems. This result was connecting a series of numbers with a specified probability range in just 36 millionths of a second

For comparison, this task would take more than 9,000 years of the most powerful supercomputers available in the world.

“That’s what we think is really cool about this,” said Christian Widbrook, Xanadu founder and CEO. The Globe and Mail. “A lot of these hacks are what we need to get into a quantum computer that’s useful to customers.”

The most important part of this breakthrough is that it indicates that the industry is on the path to universal quantum computing.

Other major quantum computer developments

Last January, researchers from the University of South Wales (UNSW) Take a big step To prove that near-error-free quantum computing is possible by providing a device that performed 99% error-free operations.

Meanwhile, November of 2021 saw Two major breakthroughs in quantum computing. Or not, US Quantitative Economic Development Consortium Results revealed One of the benchmark experiments that demonstrated how an advanced method of error suppression increased the probability of success of quantum computing algorithms on real machines by an unprecedented 2,500%.

Second, engineers from Stanford University Show a new, simpler and more advanced design For a quantum computer that could help practical versions of the machine finally become a reality. The new design saw a single atom entangled with a series of photons, allowing it to process and store more information, as well as operate at room temperature.

What does all this mean?

Quantum computing could soon be coming to our homes and offices.

Barry Sanders, director of the Institute for Quantum Science and Technology at the University of Calgary, who was not affiliated with Xanadu, said: The Globe and Mail This latest development is important.

“It’s not a small step, it’s a big leap forward,” Sanders said.

Xanadu uses an approach known as photonics with the main advantage of engineering a device that can operate at room temperature. But it is not yet ready for operations. Engineers calculate that it would take at least a million qubits to produce a commercially viable quantum computer. However, evolution is a step forward that simply cannot be ignored.

the study posted In the temper nature magazine.


A quantum computer gains a computational advantage when it outperforms the best classical computers that run the most famous algorithms on well-defined tasks. No photonic machine that offers programmability on all of its quantum gates has demonstrated a quantum computational advantage: the earlier machines1And the2 largely to static gate sequences. Previous photonic demonstrations were also vulnerable to plagiarism3, where classical inference produces samples, without direct simulation, that are closer to an ideal distribution than samples from quantum devices. Here we report a quantum computational advantage using Borealis, a photoprocessor that provides dynamic programmability on all implemented gates. We are sampling the Gaussian boson4 (GBS) contains 216 interlaced compressed modes with 3D connectivity5, using a time-multiplexed architecture and a photon number solution. On average, it would take more than 9,000 years for the best algorithms and supercomputers available to produce a single sample of the programmed distribution, using precise methods, while Borealis requires only 36 microseconds. This uptime feature is 50 million times more than that reported from previous optical machines. Our experiment constitutes a very large GBS experiment, recording events with up to 219 photons and an average photon count of 125. This work is a milestone on the road to a practical quantum computer, validating key technological features of photonics as a platform for this goal.