Experts have cast doubt on these claims, but now, a team has achieved what they call “unconditional” quantum information supremacy. Advertisement AdvertisementAdvertisement“A longstanding goal in quantum information science is to demonstrate quantum computations that cannot be feasibly reproduced on a classical computer,” the authors wrote. This form of quantum advantage—which we call quantum information supremacy—represents a new benchmark in quantum computing, one that does not rely on unproven conjectures.”In the experiment, the quantum computer used qubits made from ions and controlled by lasers. The quantum computer then optimized this procedure until Bob’s output could be predicted before Alice revealed its state, reports to New Scientist state. With quantum supremacy verifiably achieved, the work continues to make the promise of these futuristic computers a reality.