Entanglement cost of bipartite mixed states

Vidal, G.; Dür, W.; Cirac, J. Ignacio

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Entanglement cost of bipartite mixed states

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Cirac, J. Ignacio
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;

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引用

Vidal, G., Dür, W., & Cirac, J. I. (2002). Entanglement cost of bipartite mixed states. Physical Review Letters, 89(2):, 027901. Retrieved from http://link.aps.org/abstract/PRL/v89/e027901.

引用: https://hdl.handle.net/11858/00-001M-0000-000F-C1F8-5

要旨

We compute the entanglement cost of several families of bipartite mixed states, including arbitrary mixtures of two Bell states. This is achieved by developing a technique that allows us to ascertain the additivity of the entanglement of formation for any state supported on specific subspaces. As a side result, the proof of the irreversibility in asymptotic local manipulations of entanglement is extended to two-qubit systems.