Mysterious quantum computing restrictions spread across multiple nations — UK cites national security risks and refuses to elaborate

Four EU states have all issued identical bans on the export of quantum computers with more than 34 qubits and error rates below a certain threshold. The nature of the bans is a mystery, with states declining to elaborate per national security concerns. 

Four EU states have all issued identical bans on the export of quantum computers with more than 34 qubits and error rates below a certain threshold. The nature of the bans is a mystery, with states declining to elaborate per national security concerns.