New posts in Fourier Transform

Why is the electron self-energy gauge dependent?

Derivation of position operator in QM

Sound of a limited wave after removing main frequency?

Why is a wave pulse a superposition of sine waves?

Why is the Fourier transform more useful than the Hartley transform in physics?

The Dirac-delta function as an initial state for the quantum free particle

"Lack of inversion symmetry" in crystal?

Why aren't four-vectors used in the definition of a Klein-Gordon quantum field?

A four-dimensional integral in Peskin & Schroeder

What is the significance of negative frequency in Fourier transform?