[QUESTION] Adjoint of Fast Fourier Transform #1138

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1. mohsensadr

   added

   questionThe issue author requires informationThe issue author requires information

   on Dec 21, 2025
2. shi-eric

   assigned

   daedalus5

   on Dec 22, 2025
3. shi-eric

   changed the title [-][QUESTION][/-] [+][QUESTION] Adjoint of Fast Fourier Transform[/+] on Dec 22, 2025
4. NVIDIA

   deleted a comment from coderabbitai on Jan 7, 2026
5. daedalus5

   added

   feature requestRequest for something to be addedRequest for something to be added

   on Jan 7, 2026
6. daedalus5 commented on Jan 7, 2026

   

   daedalus5

   on Jan 7, 2026

   Contributor

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   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.
7. daedalus5

   added this to the 1.12.0 milestone on Jan 15, 2026
8. Ali-Razmjoo

   added 2 commits that reference this issue on Jan 30, 2026

   Add differentiability support for `wp.tile_fft()` and `wp.tile_ifft()…

   ...

   85dd23d

   Merge branch 'fft_adjoint' into 'main'

   ...

   23808f8
9. daedalus5 commented on Feb 3, 2026

   

   daedalus5

   on Feb 3, 2026

   Contributor

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   Hi @mohsensadr , the FFT and IFFT adjoints have been added. You can try them out using latest main. Let me know if you run into any issues.

   👍React with 👍1Reacted by Mohsen
10. mohsensadr commented on Feb 4, 2026

    

    mohsensadr

    on Feb 4, 2026

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    Perfect! Thanks a lot. I will give it a try in the next days.
11. AnkaChan

    added a commit that references this issue on Mar 29, 2026

    Add differentiability support for `wp.tile_fft()` and `wp.tile_ifft()…

    ...

    4912a4e
12. daedalus5

    closed this as completedon Apr 27, 2026