Quantum advance cuts qubit needs from 1000 to 5, brings practical computing closer

Researchers at Caltech and Oratomic developed an error-correction architecture that cuts redundant qubits dramatically.

They estimate a fault-tolerant quantum computer could work with about 10,000–20,000 qubits and logical qubits built from roughly five physical qubits.

The approach uses neutral atom systems and optical tweezers and builds on lab demonstrations of arrays over 6,000 qubits.

The result could shorten the timeline for quantum capabilities that threaten current encryption methods.

The study was published in Nature.