Five Silicon Qubits, One Control Line — October 26, 2026

A RIKEN-led team reports accurate simultaneous control of five silicon spin qubits on one shared microwave line. The episode also covers a proposed qubit readout method, simulated Kerr-cat gates, quantum-safe SIM testing, investment figures from Israel and a D-Wave sampling comparison. Supercurrent enables the reading of quantum information without destroying it — Quantum Physics News Researchers Build Qubit Gates with 99.69% Fidelity — Quantum Zeitgeist IDEMIA and KT test quantum-safe SIMs for Korean defence — Quantum Zeitgeist Israel ranks fourth globally in quantum investment as startups gain momentum - CTech Researchers Find Optimization Boosts Don’t Guarantee Better Sampling — Quantum Zeitgeist Scientists overcome a hidden obstacle to more powerful quantum computers — Quantum Computers News -- ScienceDaily Chapters 00:00 Today's headlines 00:57 Andreev qubit's oscillating supercurrent 02:21 Simulated Kerr-cat entangling gate 03:26 IDEMIA, KT test post-quantum SIM cards 04:34 Israel ranks fourth in quantum investment 05:20 D-Wave Advantage finds ground states 06:31 Five silicon qubits on one shared line 09:11 Drive-induced decoherence: a limitation Source links phys.org thequantuminsider.com Quickly Quantum is an AI-voiced podcast, built and run by a real person. Nothing in this episode is financial advice. Follow Quickly Quantum: subscribe on YouTube · Apple Podcasts · Spotify More from Brian Lampert: Concrete Compute, the daily AI infrastructure briefing, and Space Stakes, the business of the new space race. Transcripts and every episode: quickly-quantum.kngoworld.chatgpt.site.