Export eigenvectors with corresponding eigenvalue from diagHermitian function

Question

Hi,

I'm using diagHermitian(IQTensor H, IQTensor & U, IQTensor & D, Args args = Args::global()) -> Spectrum to calculate other expectation values with the eigenstates. Is there anyway more clever than looking up the U to sum over the all the states with the same Link index and get the corresponding eigenstates?
Thank you.

Best,
Victor

Comments

Hi Victor, can you elaborate a bit more on your question? What do you mean other expectations values with the eigenstates. Which eigenstates? Thanks -

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Hi, Miles. Thanks for quick reply.
I have figured it out by using all ITensor-based eigenstates, operators. Sorry about my rush question.
Thank you.

Answer 1

(Replying just to mark this question as answered. See comments above.)