Why do we need complex numbers while normalizing the wave function?

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SUMMARY

The discussion centers on the necessity of complex numbers in the normalization of wave functions in quantum mechanics. It is established that the integral of the squared modulus of the wave function, represented as -∫|ψ(x,t)|^2dx, must equal 1 for proper normalization. Participants clarify that while the normalization process involves complex wave functions, the result, |ψ|^2, is a real number, which raises questions about the role of complex numbers in this context.

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Lasha
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I'll write down what i know and point it out if I'm wrong.So we normalize the wave function because -∫|ψ(x,t)|^2dx should always be equal to 1 right? Has this anything to do with transition from ψ to ψ^2?
 
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What do you mean by "need complex numbers while normalizing the wave function"?

|ψ|2 is guaranteed to be real, so the normalization integral shouldn't involve complex numbers at all.
 

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