Even minimal depolarizing noise destroys Shor's algorithm's exponential quantum advantage by breaking resonance effects. Researchers propose a polynomial-time classical algorithm to handle low-frequency contributions.
@informaq.bsky.social
@informaq.bsky.socialEven minimal depolarizing noise destroys Shor's algorithm's exponential quantum advantage by breaking resonance effects. Researchers propose a polynomial-time classical algorithm to handle low-frequency contributions.
@opg.optica.orgAn Editors' Pick via #OPG_OpEx: Broadband high-level squeezed light using waveguide optical parametric amplifiers with external dispersion compensation https://bit.ly/4hlGZoi #OpticalAmplifiers #QuantumNoise @utokyoofficial.bsky.social 💡⚛️
@informaq.bsky.socialSingle-qubit relaxation measurements on D-Wave quantum annealers can predict two-qubit system behavior within a factor of ~4. GKSL master equation analysis reveals noise mechanisms in programmable quantum processors.
@informaq.bsky.socialA new theoretical framework for 'real classical shadows' achieves nearly 2x improvement in sample efficiency for quantum state reconstruction while accounting for real-world noise in quantum devices, advancing practical quantum information processing.
@informaq.bsky.socialResearchers developed phase-cycled measurements to detect classical noise correlations hidden by standard randomized benchmarking, validated on IBM quantum processors with engineered noise injection and exact theoretical predictions.