Study shows quantum computers excel at guessing.

Researchers at USC and IBM Quantum have achieved a quantum speedup advantage in a bitstring guessing game by suppressing errors typically seen at this scale using a noise suppression technique called dynamical decoupling. The quantum algorithm functioned as intended, and the time to solve problems grew more slowly than with any classical computer, with the quantum advantage becoming increasingly evident as the problems became more complex. The study conclusively demonstrates that with proper error control, quantum computers can execute complete algorithms with better scaling of the time it takes to find the solution than conventional computers, even in the NISQ era.