Lower bounds on concurrence and negativity from a trace inequality

K. V. Antipin

doi:10.1142/s0217732320502545

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arXiv · 2005.01881

Lower bounds on concurrence and negativity from a trace inequality

K. V. Antipin

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Abstract

For bipartite quantum states we obtain lower bounds on two important entanglement measures, concurrence and negativity, studying the inequalities for the expectation value of a projector on some subspace of the Hilbert space. Several applications, including analysis of stability of entanglement under various perturbations of a state, are discussed.

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K. V. Antipin. 2020-05-04. Lower bounds on concurrence and negativity from a trace inequality. https://doi.org/10.1142/s0217732320502545

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