Quantum computing: Google presents an unprecedented breakthrough

Google claims to have reached a major milestone in the field of quantum computing. Its Willow processor reportedly performed a molecular modeling task 13,000 times faster than a supercomputer. The announcement, backed by verifiable results, reignites the debate about the security of cryptographic systems. While Bitcoin and other protocols rely on quantum-vulnerable algorithms, this technical advance transforms a theoretical threat into a concrete problem for the entire blockchain ecosystem.

Google has taken a step forward with its Willow quantum processor

Google has announced that it has reached a historic milestone in the race for quantum computing as the threat slowly closes in on Bitcoin. Its Willow processor made it possible to map the characteristics of a molecule 13,000 times faster than a last-generation supercomputer.

A performance that, according to the technology giant, is an absolute first “verifiable quantum advantage”. An experiment carried out using technology “quantum echoes”consisted of targeting the qubit with a precise signal and then measuring the generated return signal, enabling ultra-detailed imaging.

“We have shown that this type of experiment can be reproduced on any system with equivalent technical specifications”explained Google’s research team, emphasizing the scientific robustness of their approach.

This advance goes beyond one-shot performance, but represents a key step in the trustworthiness of quantum systems compared to classical architectures. It is based on results published and verified in recognized scientific journals, in particular “nature”which strengthens their reach in the scientific community. To better understand the technical implications of this demonstration, here are the key points to remember:

• 13,000 times faster: this is a speed factor measured against the best current supercomputers;

• Quantum echo: the method used uses the properties of qubits to pick up return signals, like quantum sonar;

• Verifiable experience: results can be reproduced on other equivalent machines, confirming the legitimacy of the demonstration;

• Willow: this is the name of the processor developed by Google for this experiment, designed specifically for high-precision quantum simulations;

• Molecular imaging: although the primary use is scientific, the implications are transversal, including sensitive areas such as cryptography.

The Quantum Equation: Threat or Catalyst for the Crypto Ecosystem?

Google’s announcement goes beyond molecular research. Cybersecurity and blockchain experts were quick to respond to this show of force.

David Carvalho, founder of the decentralized cybersecurity protocol Naoris, emphasizes that this progress represents “biggest threat to bitcoin since its inception”.

Indeed, current cryptographic algorithms, notably ECDSA, used to generate Bitcoin’s public-private key pairs could indeed be rendered obsolete if a powerful enough quantum machine emerges. If Google’s experience does not yet threaten these systems, it illustrates a concrete convergence between theory and reality, making the subject less and less abstract.

For now, the capabilities of quantum computers remain limited. Specialist filmmaker Mental Outlaw suggests that current machines can only break 22-bit keys at most, which is a far cry from the 2048 or 4096 bits of modern standards.

However, the warning signs are increasing. In September, the US Securities and Exchange Commission (SEC) received a draft plan to adopt post-quantum cryptography standards by 2035. The goal of this initiative is to anticipate the emergence of quantum computers capable of compromising critical digital infrastructure, including public blockchains.

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