A quantum processor, using error mitigation rather than full error correction, can reliably simulate many-body quantum dynamics..

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A 91-qubit IBM quantum processor successfully simulated chaotic quantum dynamics using error mitigation techniques instead of full error correction. The research validated results against exact theoretical predictions and used quantum data to resolve disagreements between competing classical simulation methods. The work demonstrates that near-term quantum computers can reliably study complex many-body physics before fault-tolerant machines become available, using dual-unitary circuits as practical benchmarks and tensor-network error mitigation to correct noise after computation.

Researchers Show Today’s Quantum Computers Can Reliably Study Complex Physics

Implications for Near-Term Quantum Computing