Quantum computers outperform classical ones, with results you can trust

IBM added three new entries to its quantum advantage tracker, each using a different way to reduce errors and verify results on today’s quantum hardware.

The story says quantum speedups are hard to prove because many outputs are difficult to check classically, and classical algorithms can sometimes narrow the gap.

One example from IBM, RIKEN, and Qedma modeled a Floquet process in an Ising system to test methods on noisy, limited processors.

The broader point: credible quantum advantage claims need techniques that work on real hardware and still support validation when classical simulation is impractical.