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- Summary
- Fermions such as the electron and proton can be described by wave function in momentum and in space. what about photons?

Fermions such as the electron and proton can be described by wave function in momentum and in position, and it is possible to get the momentum wavefunction from space wave function and vice versa by Fourier Transform.

what about photons? can photons be described by position wave function?

If they cannot be described by position wave function, what is the meaning of their location?

the uncertainty principle of Heisenberg for fermions follows directly from Fourier transform of the space wave function. what about the case of photons?

For example : the double slit experiment.

For both fermions and photons there is an interference pattern, depending on the size of the slit compared to the wavelength of the particle.

It is easy to understand it for fermions because you can describe them in both position and momentum wave function , but for photons it's not the same.

what about photons? can photons be described by position wave function?

If they cannot be described by position wave function, what is the meaning of their location?

the uncertainty principle of Heisenberg for fermions follows directly from Fourier transform of the space wave function. what about the case of photons?

For example : the double slit experiment.

For both fermions and photons there is an interference pattern, depending on the size of the slit compared to the wavelength of the particle.

It is easy to understand it for fermions because you can describe them in both position and momentum wave function , but for photons it's not the same.