We used complex variables to describe the wave function. People do that in acoustics and optics too, strictly for convenience, because the real and imaginary parts are rudundant.(adsbygoogle = window.adsbygoogle || []).push({});

The wave function of quantum mechanics is "necessarily" complex, it's not just for convenience that we use complex numbers in quantum theory. Is there any physical reason for the wave function to be complex?

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# De Broglie Waves and Complex Numbers

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