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Quantum Chaos Simulation on 91-Qubit Processor Using Error Mitigation Breakthrough Large-Scale Quantum Chaos Finally Within Reach of Near-Term Quantum Computers The study of quantum chaos aims to translate chaotic classical dynamics into quantum terms, but practical simulations have been held back by limited computing power. Using advanced error mitigation and custom-designed circuits on a 91-qubit superconducting quantum processor , researchers have demonstrated a promising new approach. The work is reported in Nature Physics . Error Mitigation Instead of Error Correction Reliable quantum simulations demand the suppression of errors, yet full-scale quantum error correction comes at the cost of significant qubit and control overheads . Until now, researchers have largely sidestepped this challenge by focusing on smaller quantum many-body systems or on integrable models that exhibit limited chaos. In the new study, the team adopted a different strategy. Rather than eliminating noi...