QSVT for odd degree polynomial: mathematical expansion

Hello,

In this demo, shouldn’t the mathematical expansion of the odd-degree polynomial contain an additional block-encoded unitary application between the first projector-controlled phase gate and the multiplication operator?

In fact, the documentation of qml.QSVT contains this extra unitary.

Thank you!

Hi @psansebastian , welcome back to the Forum and thanks for pointing this out!

I think you’re right, good catch!
We’ll make sure to fix this.
Thanks for helping us improve PennyLane. :heart:

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