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Super natural orbital representation of many-body operators: structured non-Gaussianity and matrix product operator compression

Debertolis, Maxime
arXiv (All) · Papers
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quantum-physicsstrongly-correlated-electrons
We introduce super natural orbitals (SNOs) for many-body operators, defined as the eigenvectors of the one-body super-density matrix associated with an operator (OBDMO). These objects provide a natural measure of the complexity of operators in terms of non-Gaussianity. We first establish analytical
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