Google uncovers how quantum computers can beat today's best supercomputers
Researchers at Google have shown that quantum computers can surpass classical supercomputers under specific noise conditions, emphasizing noise management's role in achieving quantum advantage and driving advancements in both technologies.
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Researchers at Google have identified the conditions under which quantum computers can outperform classical supercomputers, marking a significant advancement in the quest for "quantum advantage." Using their Sycamore processor, the team conducted random circuit sampling (RCS) and discovered that while high noise levels allowed classical machines to surpass quantum performance, reducing noise to a specific threshold made it nearly impossible for classical computers to replicate Sycamore's computations. Estimates suggest that the fastest classical supercomputer would require ten trillion years to match Sycamore's output under optimal conditions. This research, published in Nature, clarifies previous uncertainties regarding RCS and highlights the importance of noise management in quantum computing. Despite these advancements, experts emphasize that quantum computers are not intended to replace classical computers but rather to tackle problems that are currently insurmountable for classical systems, such as simulating complex chemical reactions. The findings underscore the ongoing competition between quantum and classical computing, driving improvements in both fields.
- Google has demonstrated that quantum computers can outperform classical supercomputers under specific noise conditions.
- The Sycamore processor's performance improves significantly when noise is reduced, making classical spoofing nearly impossible.
- Quantum computers are designed for different tasks than classical computers and will not replace them.
- The research emphasizes the importance of managing noise in quantum computing for achieving practical advantages.
- Ongoing competition between quantum and classical computing continues to drive advancements in both technologies.
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