Quantum Advantage
Quantum advantage (sometimes “quantum supremacy”) describes a computation that a quantum computer can perform that is intractable for classical computers within a reasonable timeframe. Claimed instances have historically attracted scepticism because researchers often find classical workarounds after the fact.
Quantinuum’s Fermi-Hubbard simulation (November 2025) is notable as one of the more credible demonstrations: it solved a foundational condensed-matter physics problem on trapped-ion hardware, with classical simulation deemed “near impossible” in a reasonable timeframe. The result could help develop room-temperature superconductors.
scott-aaronson: “We’re actually getting reasonable candidates for verifiable quantum supremacy that we can do on current devices.”
See quantum-computing, quantinuum, qubit.