The Willow chip marks a new milestone in Google’s quantum race
Google researchers announced the first verifiable quantum advantage, using their Willow processor to map a molecule’s features 13,000 times faster than a modern supercomputer by employing a technique called “quantum echoes.”
The experiment utilized Google’s Willow Quantum processor to execute the “quantum echoes” method. This technique involves targeting a single qubit, the basic unit of information in quantum computing, with a precise signal. The process is then reversed, allowing researchers to measure the “echo,” or the signal that bounces back, to image an object in detail.
Google’s experiment is described as verifiable, meaning the results can be obtained on any quantum computer with the same technical specifications. This achievement highlights a potential capability of quantum technology: a sufficiently powerful quantum computer could break encryption algorithms. These algorithms secure sensitive information in banking, medical, and military applications, and also underpin cryptocurrencies.
Encryption is the foundational component of digital assets and peer-to-peer finance. Experts project that quantum computers could render elliptic curve digital signature algorithms (ECDSA) obsolete as early as 2030. ECDSA is the cryptography used for generating public Bitcoin keys, placing the network’s security at risk from future quantum advancements.
David Carvalho, founder and chief scientist at the Naoris decentralized cybersecurity protocol, called this “the biggest single threat to Bitcoin since its inception from the ashes of the global financial crisis.” Carvalho added that Bitcoin and other decentralized protocols suffer from a collective action problem, where communities debate theoretical solutions instead of promptly implementing known workarounds.
Investors and companies are seeking to address the problem by urging the adoption of post-quantum cryptography standards before a sufficiently powerful quantum computer is built. In September, the U.S. Securities and Exchange Commission received a submission outlining a roadmap for implementing quantum-resistant encryption standards by 2035.
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