IBM Maps Path From Error Mitigation to Quantum Correction

IBM researchers are working to chart a course from reducing quantum errors to fully correcting them. The team recognizes that minimizing mistakes is not enough, but rather how those mistakes are addressed.

The most effective approach involves optimizing across a spectrum of error-correcting techniques, including mitigation and correction. This allows for scaling quantum computation, measured by the size of the circuit that can be run with available error-correcting tools.

Full quantum error correction demands hardware beyond current capabilities, but techniques like probabilistic error cancellation (PEC) are already enabling computations on systems that surpass classical verification.