Caltech Breakthrough Puts Bitcoin Encryption at Risk of Quantum Attack

A team of researchers at the California Institute of Technology (Caltech) has made a groundbreaking discovery in the field of quantum computing. By developing a new error-correction architecture, they have demonstrated that it is possible to build a fault-tolerant quantum computer with as few as 10,000 qubits.

This breakthrough has significant implications for Bitcoin's security, as experts have long argued that the encryption used by the cryptocurrency would be vulnerable to attacks from quantum computers. According to estimates, breaking Bitcoin's elliptic curve cryptography requires around 2,100 logical qubits, but each of these qubits needs up to 10,000 physical qubits for error correction.

However, the Caltech team's new architecture exploits the unique properties of neutral atoms to enable long-range entanglement and high-rate error correction codes. This reduces the physical-to-logical qubit ratio from approximately 1,000-to-1 to around 5-to-1, making it possible to build a quantum computer that can crack Bitcoin's encryption with just 10,500 physical qubits.