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Conjugation is positive - #14

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mehatamm wants to merge 1 commit into
Timeroot:mainfrom
mehatamm:unitary_channels
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mehatamm wants to merge 1 commit into
Timeroot:mainfrom
mehatamm:unitary_channels

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@mehatamm

@mehatamm mehatamm commented Oct 1, 2025

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Added proof that conjugation by any matrix is positive. Added new sorry for proving equivalence of identity-tensored conjugation and conjugation by an identity-tensored matrix, which when filled in proves the conjugation by any matrix is completely positive.

Changed a matrix lemma to also work with non-square matrices.

@Timeroot

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Hi, sorry I never got this merged. I guess other things sort of gradually made it less relevant, and I think now an appropriate (other) version of it exists in the repo. Thank you very much, though!

@Timeroot Timeroot closed this Mar 25, 2026
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