Quantum

Gil Kalai (Hebrew University / Reichman University): Why noise may doom quantum computers

Gil Kalai (Hebrew University / Reichman University): Why noise may doom quantum computers

Yuval Boger interviews mathematician Gil Kalai about his long-standing skepticism regarding scalable quantum computing. Kalai explains two main arguments behind his theory: correlated noise that may defeat quantum error correction and complexity-based limits on NISQ devices achieving quantum supremacy. They discuss experimental claims such as Google’s 2019 result, potential tests of Kalai’s conjectures, and the … Read more

French National Quantum Update: July 2026

French National Quantum Update: July 2026

Executive Summary France’s quantum ecosystem continued to expand in July 2026 through a combination of government oversight, industrial scaling, international partnerships and commercial growth, even as policymakers acknowledged intensifying global competition. The French Court of Auditors concluded that the country’s National Quantum Strategy has been well managed but warned that the international landscape has evolved … Read more

Pusan National University Researchers Have Developed a Hybrid Quantum Network with Indistinguishable Quantum Sources

Pusan National University Researchers Have Developed a Hybrid Quantum Network with Indistinguishable Quantum Sources

Insider Brief Researchers from Pusan National University and Ulsan National Institute of Science and Technology demonstrated photon interference between two different quantum light sources, a cesium atomic ensemble and a semiconductor quantum dot. The experiment produced indistinguishable photons from separate quantum systems and achieved Hong–Ou–Mandel interference with a visibility of 0.65 ± 0.14 without spectral … Read more

IBM and Algorithmiq Develop Framework for Verifying Quantum Computations Beyond Classical Simulation

IBM and Algorithmiq Develop Framework for Verifying Quantum Computations Beyond Classical Simulation

Insider Brief IBM and Algorithmiq have demonstrated a quantum computation framework for studying heterogeneous quantum materials while validating results when classical verification methods are unavailable. The team used an IBM Quantum Heron processor to simulate a programmable quantum material and developed a validation approach based on noise modeling, error mitigation, and cross-platform testing. Algorithmiq released … Read more