Perturbative expansion of entanglement negativity using patterned matrix calculus
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DOI: 10.1103/physreva.99.012322
Abstract: Negativity is an entanglement monotone frequently used to quantify entanglement in bipartite states. Because negativity is a non-analytic function of a density matrix, existing methods used in the physics literature are insufficient to compute its… read more here.
Keywords: entanglement negativity; entanglement; perturbative expansion; negativity ... See more keywords