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In the SNAP gate example, there is an amount of 2 * np.pi * n * chi * pulse_length that was added to the phases to be added by SNAP gates. Is this dynamical phase? Is it only an approximation? I tried to apply the exact same SNAP gate to a non-entangled state where the qubit is in excited state for all photon numbers but the dynamical phases seem to be slightly different from this value. Thanks!

Hi, thanks for a great tool.
Is there an efficient way to pass a custom pulse to the pulse sequence? So my custom pulse is quite simple, for example, just changing the phase of the default Gaussian pulse or change its amplitude. Is there a fast way to do it rather than having to get out the two arrays and feed them into the Operation? Thanks!

cleanup, documentation

For example, using krotov.

https://mypy.readthedocs.io/en/stable/cheat_sheet_py3.html

cleanup, documentation

Likely we just want to let the user supply their own functions that implement something like a transfer function