Experimental high-dimensional multi-qubit Bell non-locality on a superconducting quantum processor

Researchers have achieved a significant breakthrough in quantum computing by demonstrating high-dimensional multi-qubit Bell non-locality on a superconducting quantum processor. This milestone was reached by observing simultaneous high-dimensional and many-body Bell non-locality, a previously inaccessible regime. The experiment involved encoding two 64-dimensional systems in twelve qubits, resulting in a high-confidence Bell violation. This violation was also observed in system sizes up to 32 dimensions. The strength of the observed correlations decreased as the system size increased, but remained statistically significant. This achievement has implications for the development of quantum computing and quantum information processing, as it demonstrates the ability to generate and measure complex quantum correlations¹. The ability to manipulate and control these correlations is crucial for the realization of quantum computing's full potential, so understanding and harnessing high-dimensional Bell non-locality is essential for advancing quantum technology.