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IonQ researchers priced an attack on secp256k1, the curve Bitcoin and Ethereum use for signatures, for a machine the company has not built, assuming two-qubit gate errors of 1 in 10,000 over a run of nearly four weeks.
Twenty authors tied quantum chemistry and topological data analysis to Helios, Sol in 2027, Apollo in 2029, and Lumos in the 2030s. They called the roadmap an assumption-driven envelope, not a deterministic forecast.
A quantum computer runs on clocks from nanoseconds to hours. IBM and Xanadu both drew their software layers along those clocks. A buyer still cannot swap one vendor's processor, controller or decoder for another's by recompiling.
IonQ's team ran qLDPC, toric, and concatenated codes on one chain of 40 barium ions without moving them. In the best code, logical qubits lasted 3.95 seconds, against 3.84 seconds for the physical qubits in the authors' revised analysis.
IonQ said it linked two of its commercial trapped-ion computers at a distance in work funded in part through an Air Force Research Laboratory agreement. The company gave no fidelity, entanglement rate, or distance and cited no paper.
