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A comment on Qusim.py – A toy multi-qubit quantum computer simulator written in Python. Parent comment

Re:Qusim.py – A toy multi-qubit quantum computer simulator w... by thethirdone on Monday April 09, 2018 @06:42PM (#16797612)
> these matrices must be their own inverse (in mathematical terms, Unitary and Hermitian). The full (2^n)x(2^n) matrices are derived by taking the tensor products of several 2x2 and 4x4 matrices.

Gates don't have to be Hermitian right? Like NOT^(1/2) is not Hermitian.

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Re:Qusim.py – A toy multi-qubit quantum computer simulator w... by adamisntdead on Monday April 09, 2018 @06:52PM (#16797673)
Yep, observables in quantum mechanics are represented by hermitian matrices
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Re:Qusim.py – A toy multi-qubit quantum computer simulator w... by ahelwer on Monday April 09, 2018 @06:52PM (#16797679)
Oh wow, am I wrong? I thought all quantum operators were their own inverses, which since they're all unitary means they must be hermitian.
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