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Mixed-state entanglement and quantum communication

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abstract

We present basics of mixed-state entanglement theory. The first part of the article is devoted to mathematical characterizations of entangled states. In second part we discuss the question of using mixed-state entanglement for quantum communication. In particular, a type of entanglement that is not directly useful for quantum communcation (called bound entanglement) is analysed in detail.

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2025 1

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  • Distribution Relationship of Quantum Battery Capacity quant-ph · 2025-02-05 · conditional · none · ref 59 · internal anchor

    For X-states, quantum battery capacity obeys a monogamy inequality, and the leftover capacity can be redistributed to subsystems by a global unitary.