Source: Latest Science News -- ScienceDaily
A team has demonstrated a measurement method using supercurrents that preserves quantum information during readout—a long-standing constraint that has limited quantum computing's ability to detect and correct errors in real time. The core problem: traditional measurements collapse quantum states, forcing systems to rebuild their calculations from scratch. Non-destructive readout would allow repeated checking of the same qubit without information loss. If scaled, this could improve error correction rates and reduce the computational overhead that currently makes quantum machines impractical for most real-world problems.