To enable each qubit to interact with several others, the researchers opted for an arrangement in which each is linked to two or three neighbours on a hexagonal grid. The United States, China and the European Union have initiated massively funded projects in quantum computing, hoping to pull ahead in the field, which is often considered as one of the cornerstones on which the new global supremacy will be determined. US Show more US. Retrieved January 20, Dijkstra J. Retrieved March 9, Retrieved January 8,