The new experiment is part of a deeper investigation into the potential of quantum processors to perform complex calculations despite interference from background noise.
A team of scientists led by Google has presented new evidence that modern mid-sized quantum devices can power powerful circuits that are beyond the reach of classical computing systems. HPCwire writes about this
As explained in the publication, scientists used a method called random circuit sampling to test the accuracy of a two-dimensional grid of superconducting qubits (the building blocks of a quantum computer). The benchmark for evaluating the performance of a quantum computer compared to a classical supercomputer was a random sample of circuits.
This experiment showed a transition between the two stages: the calculations in the second stage, called the “low-noise stage”, are complex enough for a quantum computer to outperform classical systems. Thus, scientists showed that a quantum processor can perform computational tasks that cannot be repeated by modern supercomputers.
“By presenting the RCS experiment in a low-noise stage with 67 qubits over 32 cycles, we show that the computational cost of our experiment is beyond the capabilities of current classical supercomputers,” Google said.
Important
The experiment is said to be part of a deeper investigation into the potential of quantum processors to perform complex calculations despite interference from background noise. We are talking about interferences (temperature, magnetic fields and even radiation from space) that can affect the accuracy of calculations.
According to scientists, this interference could disrupt the execution of complex tasks that are beyond the reach of classical supercomputers. But until now, it has been difficult to determine exactly how noise affects the performance of quantum circuits.
Let us remind you that calculations can be made faster with the new technology of scientists from Tokyo University. Techniques such as diffraction casting are said to be able to overcome various challenges associated with optical computing.
It was also previously reported that scientists from the University of Science and Technology of China have created a device that can simulate the movement of electrons within a solid material. This research reveals the potential for quantum computers to outperform even the most powerful supercomputers.
Source: Focus
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