IBM's Quantum Computing Achievements: Error Mitigation and Superior Performance.

IBM researchers have used a technique called "error mitigation" to overcome the problems with today's quantum processors and produce an accurate result despite the noise in the system. They intentionally amplified and then measured the processor's noise at different levels to estimate a function that produces similar output as the actual measurements. This function can then have its noise set to zero to produce an estimate of what the processor would do without any noise at all. The researchers tested this system using an Ising model and found that it outperformed similar calculations on classical computers.