I don't know anything about quantum mechanics, but if I'm reading the article right the experiments are meant to disprove this? > Perhaps it’s most natural to

I don't know anything about quantum mechanics, but if I'm reading the article right the experiments are meant to disprove this? > Perhaps it’s most natural to represent each complex dimension by two real dimensions, but real-valued theories need not be so limited. There could be three real dimensions per complex dimension—or four, or even infinitely many. > Navascués and colleagues found a function of measurement correlations for the entanglement-swapping experiment that could reach 62‾√=8.49 in standard quantum theory but that could never exceed 7.66 in a real-valued formulation. edit: ok I think they're talking about something different entirely, reading more just made me confused. It seems to me that complex numbers are easier to work with than 2d vectors with operations defined to make them behave the same as complex numbers though.