Quantum computer breakthrough tracks qubit fluctuations in real time

Researchers at the Niels Bohr Institute developed a breakthrough system that tracks quantum computer qubit fluctuations in real time, solving a major obstacle in quantum computing development. Using commercially available hardware and adaptive measurement techniques, the team can now detect rapid changes in qubit behavior within milliseconds rather than the previous minute-long delays. This hundred-fold speed improvement reveals that qubits can shift from "good" to "bad" performance in fractions of a second, providing crucial insights for building more reliable quantum processors.