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Local predictability and coherence versus distributed entanglement in entanglement swapping from partially entangled pure states
- Source :
- Phys. Lett. A 457, 128576 (2023)
- Publication Year :
- 2022
-
Abstract
- Complete complementarity relations, as e.g. $P(\rho_{A})^{2} + C(\rho_{A})^{2} + E(|\Psi\rangle_{AB})^{2}=1$, constrain the local predictability, $P$, and local coherence, $C$, and the entanglement, $E$, 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 $P$, $C$ and the distributed entanglement in the ESP. We use IBM's quantum computers to verify experimentally some instances of these general theoretical results.
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Lett. A 457, 128576 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2211.07539
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physleta.2022.128576