Local predictability and coherence versus distributed entanglement in entanglement swapping from partially entangled pure states
arXiv:2211.07539 · doi:10.1016/j.physleta.2022.128576
Abstract
Complete complementarity relations, as e.g. , constrain the local predictability, , and local coherence, , and the entanglement, , of bipartite pure states. For pairs of qubits prepared initially in a particular class of partially entangled pure states with null local coherence, these relations were used in Ref. [Phys. Lett. A, 451, 128414 (2022)] to provide an operational connection between local predictability of the pre-measurement states with the probability of the maximally entangled components of the states after the Bell-basis measurement of the entanglement swapping protocol (ESP). In this article, we extend this result for general pure initial states establishing the relation between , and the distributed entanglement in the ESP. We use IBM's quantum computers to verify experimentally some instances of these general theoretical results.
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