Lower bounds on concurrence and negativity from a trace inequality
arXiv:2005.01881 · doi:10.1142/S0217732320502545
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.
arXiv comment14 pages
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- Near-term Efficient Quantum Algorithms for Entanglement Analysis
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