Expectation value of Fourier conjugates

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SUMMARY

The discussion centers on the relationship between expectation values of Fourier conjugates and the Uncertainty Principle. It establishes that while the Fourier Transform (FT) of a Gaussian function remains a Gaussian, the product of their standard deviations (σ) is constant. However, the expectation values of these Fourier conjugates are not directly related, contradicting the initial inquiry about their mathematical relationship.

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  • Familiarity with Gaussian functions and their properties
  • Basic concepts of expectation values in statistics
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I understand that the Uncertainty Principle relates the variances of Fourier conjugates. I am having trouble finding: 1) the mathematical relationship between the expectation values of Fourier conjugates generally; 2) and then specifically for a normalized Gaussian. Any suggestions or insights?
 
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Work your way through a textbook on Fourier transforms :smile:
1) is there any ?
2) FT of Gaussian is Gaussian. Product of their ##\sigma## is constant. expectation values are not related :rolleyes: but I like to be shown wrong
 

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