Google's magic method; Willow's quantum processor reduced computational errors by 40 times

By filtering out noise and cultivating "magic states", this method achieves a reasonable accuracy of 99.99%. The post Google's magic method; Willow's quantum processor reduced calculation errors by 40 times appeared first on Safir Arjan.

By filtering out noise and cultivating "magic states", this method achieves a reasonable accuracy of 99.99%.

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Researchers at Google's quantum artificial intelligence department have achieved remarkable success and by successfully demonstrating a technique called "Magic State Cultivation" on the Willow quantum processor, they have been able to reduce errors by about 40 times compared to non-cultivated states. This achievement has been mentioned as an important step towards the scaling and application of quantum computing.

According to Google, the researchers of this team modified and reconstructed an idea taken from scientific texts about two years ago, which eventually led to the method of "cultivating a magical state". The mechanism of this technique works like a filter; In this way, first a noisy state is injected into a small part of the quantum chip, then by performing a series of measurements, existing errors are checked and unsuccessful and defective attempts are removed. In theory, this approach allows for the cultivation of a pure, low-error quantum state that is compatible with larger encryptions.

The implementation of this approach required several new technical innovations. In this regard, Google has announced that relying on this method, numerous algorithmic innovations and engineering solutions, a new standard has been registered in the science of quantum measurement. On the Willow quantum processor, the protocol achieved a stunning 40-fold error reduction compared to non-breeding states, and recorded "T-states" (quantum states key to running error-prone computations) with a record-breaking 99.99% logic accuracy.

Google has emphasized that since 2004, researchers have noticed the existence of a serious bottleneck in the implementation of applications on quantum computers. To run useful applications on these systems, it is necessary to implement a specific set of quantum operations with error correction and through the construction of magic states; Modes that make it possible to go beyond the boundaries of classical computing. However, producing these states consumes enormous resources, to the extent that, according to some estimates, their construction may require 95 percent of the total capacity of a quantum computer, leaving little room for core computations.

The method described by Google, whose article was published in the journal Science, proves that it is possible to significantly reduce the physical footprint of qubits required for fault-tolerant computing. Of course, the widespread use of this method will require more experiments in much larger dimensions. Google has noted that the first steps have been taken to match the theories with the company's quantum infrastructure, but to enter the operational phase, the cultivation of these states must still be proven on a larger scale, and there are many technical challenges ahead. However, the current achievement is considered an important milestone in this field.

My professional career in the world of technology goes back almost 10 years; The path that started with hardware, continued with software, and now continues as a technology reporter in Sefir Arjan. I am Javad and more than three decades have passed and in addition to the world of technology, I love movies and cinema, classic rock music and Real Madrid.