Microsoft releases “1,000-fold reliability improvement” quantum chip Majorana 2

Golden Finance reports that on June 3rd, according to Decrypt, Microsoft announced a new topological quantum chip, Majorana 2, at its annual Build conference, claiming it is 1,000 times more reliable than the previous generation, with an average qubit lifespan of 20 seconds, some reaching 1 minute. The chip replaces the aluminum-based topological superconductor with a lead-based design to better protect qubits from interference. Microsoft expects to achieve scalable quantum computing by 2029. Microsoft stated that its AI tools played a key role in this research, helping researchers analyze quantum research data, identify materials, automate measurements, optimize manufacturing processes, and detect defects, thereby improving qubit reliability.
This release has intensified industry concerns about "Q-Day"—when quantum computers will be powerful enough to break widely used public key cryptography such as Bitcoin. It is estimated that approximately $461 billion worth of Bitcoin is at risk due to public key exposure. A16z partner previously stated that quantum computers could forge the digital signatures currently used by Bitcoin, allowing attackers to unauthorizedly transfer all Bitcoin from accounts.
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