The tech giant says its new lead-based quantum chip, developed with the help of AI, could accelerate the path to commercially useful quantum machines.
Microsoft has unveiled Majorana 2, its latest quantum computing chip, and said it expects commercially useful quantum computers to become a reality by 2029. The target puts the company on a similar timeline as other major players in the race to build practical quantum systems, including IBM, Google and Amazon.
The announcement marks an important milestone for Microsoft’s quantum ambitions. Until now, the company had only indicated that useful quantum computers were years away, without providing a specific timeframe.
A key feature of Majorana 2 is its redesigned architecture. Unlike many quantum processors that use aluminum-based superconducting materials, Microsoft’s new chip relies on lead. The company said the shift was made possible by AI-powered materials science tools that helped researchers identify and engineer a viable manufacturing process.
According to Microsoft, the new design delivers significant performance gains. The company claims some aspects of the chip’s performance have improved by as much as 1,000 times compared with the previous generation.
One of the biggest challenges was finding a way to use lead in chip manufacturing. Because the material is water-soluble, it can be difficult to incorporate into semiconductor fabrication processes. Microsoft said its researchers developed a specialized technique to overcome this hurdle.
The chip is based on Microsoft’s long-standing work with Majorana quasiparticles, exotic quantum states that the company believes can enable more stable and reliable quantum computers. The ultimate goal is to create fault-tolerant systems capable of solving problems that are beyond the reach of conventional computers.
Potential applications include drug discovery, materials research, chemistry simulations and advanced cybersecurity tasks.
However, Microsoft’s quantum approach remains the subject of debate within the scientific community. Some researchers argue that the company has not released enough data for independent verification of its claims regarding Majorana-based quantum states.
Microsoft maintains that it has shared extensive information with government research agencies and remains confident in the science behind its technology, signaling its commitment to bringing practical quantum computing to market before the end of the decade.
