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Lizwi

What is the square of the complex conjugate of the wake function?

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I was computing an expectation value of kinetic energy. 

Here the kinetic energy is the square of momentum divided by 2m. 

But when I square expectation value of momentum, the textbook return Psi unsquared

Please see attachment. 

4C0ECC79-B2A2-4FF4-88BB-7381B8D440B9.jpeg

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Posted (edited)

Your image cut off the top equation. Here is a hint the purpose to square the expectation value is to return a positive norm. All probability functions and energy densities are positive norm.

Edited by Mordred

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