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Willow quantum chip demonstrates verifiable quantum advantage on hardware (blog.google)

480 points by AbhishekParmar · 276 days ago · 258 comments on HN

Article summary

Google's Willow quantum chip has demonstrated a verifiable quantum advantage on hardware, running the Quantum Echoes algorithm 13,000 times faster than the best classical algorithm on a supercomputer. This breakthrough brings quantum computers closer to real-world applications, such as learning the structure of molecules and materials. The Quantum Echoes algorithm is a significant step towards practical quantum computing, enabling precise calculations that can be verified by other quantum computers. The achievement is the result of decades of work and builds on previous breakthroughs, including the suppression of errors in quantum computing.

Main themes

  • Quantum Computing
  • Verifiable Quantum Advantage
  • Quantum Algorithms
  • Real-World Applications
  • Cryptography and Security

What commenters say

  • The Quantum Echoes algorithm is a significant breakthrough that demonstrates a verifiable quantum advantage, bringing quantum computing closer to real-world applications.
  • The achievement is overhyped and does not have any real-world impact, as quantum computing is still in its early stages and lacks practical applications.
  • The threat of quantum computers to cryptography and security is real, and post-quantum cryptography is necessary to protect against potential attacks.
  • The impact of quantum computers on banking and financial systems is limited, as existing security measures and safeguards can prevent potential attacks.
  • The development of quantum computing is driven by the pursuit of grants and funding, rather than real-world applications.
  • The publication of the research in a peer-reviewed journal, such as Nature, lends credibility to the achievement and demonstrates the significance of the breakthrough.
  • The verifiability of the Quantum Echoes algorithm is a key aspect of its significance, as it enables the result to be repeated and verified by other quantum computers.
  • The potential for quantum computers to break certain types of encryption is a concern, but it is not a immediate threat and can be mitigated with post-quantum cryptography.