Complex numbers z = x + yi where x,y are real numbers and i is the imaginary number i = √-1 play a major role in the mathematics behind quantum mechanics.
Generally complex numbers simplify the mathematics but in the case of entangled systems, complex numbers may be a necessity indicating a physical reality behind them.
Sabine Hossenfelder gives an introductory description of complex numbers and brief overview of the topic.
A more detailed description is given here.
Imaginary numbers could be needed to describe reality, new studies find
Generally complex numbers simplify the mathematics but in the case of entangled systems, complex numbers may be a necessity indicating a physical reality behind them.
Sabine Hossenfelder gives an introductory description of complex numbers and brief overview of the topic.
Imaginary numbers could be needed to describe reality, new studies find