[QUESTION] Adjoint of Fast Fourier Transform

[mohsensadr]

Is there a differentiable implementation of Fast Fourier Transform in Warp?

This is needed for physics-based simulation methods like particle-in-cell that solve Vlasov-Poisson type equation in fusion and particle accelerators.

[daedalus5]

Currently we do not have a differentiable implementation of FFT. However this should be possible without too much effort. I'll upgrade this to a feature request.