entropy()

SRDef syten::entropy

(

Tensor< 2 >

densityMatrix

)

Calculates the entropy of a density matrix.

Parameters

densityMatrix

Density matrix, Tensor<2>

Returns

Entropy of density matrix

References closeThreshold(), entropy(), syten::DenseEigensolver::DenseSymEigensolverBase< Type >::evalues, kronaa(), std::log(), std::move(), overThreshold(), and SYTEN_SMALL_THRESHOLD.

Referenced by allSiteEntropy(), syten::mutualInfo::allSiteEntropy(), syten::MPS::block_entropies(), entropy(), syten::mutualInfo::entropy(), syten::mutualInfo::entropyOneSite(), entropyOneSite(), entropyTwoSite(), and syten::mutualInfo::entropyTwoSite().

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