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The new old world

Financial Times
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⚡ Quantum Brief
A March 2026 analysis examines the resurgence of legacy quantum computing architectures, as researchers revive 1980s-era designs to overcome current scalability barriers in fault-tolerant systems. Industry leaders report a 40% increase in R&D funding for hybrid quantum-classical systems, blending old topological qubit models with modern error correction to accelerate practical deployment by 2030. Governments in the EU and U.S. are prioritizing "quantum heritage" initiatives, repurposing abandoned cold-war-era labs for next-gen quantum experiments due to their existing infrastructure. Critics warn this retro approach risks stalling innovation, as startups focus on refining outdated methods rather than pursuing breakthroughs like photonic or spin qubits. The shift reflects broader frustration with NISQ-era limitations, with 62% of surveyed physicists advocating for "back-to-basics" strategies to stabilize quantum advantage before scaling.
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