Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2211.07539 · Physics Letters A

Local predictability and coherence versus distributed entanglement in entanglement swapping from partially entangled pure states

Jonas Maziero, Marcos L. W. Basso, Lucas C. Céleri

Published Dec 6, 2022• 3 citations
arXivHTMLPDF
DOI
10.1016/j.physleta.2022.128576

Related papers

Operational connection between predictability and entanglement in entanglement swapping from partially entangled pure states

Marcos L. W. Basso, Jonas Maziero

arXiv:2203.01281•Physics Letters A•Sep 1, 2022•5 citations

Entanglement Swapping for Partially Entangled Qudits and the Role of Quantum Complementarity

Diego S. Starke, Marcos L. W. Basso, Lucas C. Céleri +1 more

Abstract The entanglement swapping protocol (ESP) is extended to partially entangled qudit states and the process within the framework of complete complementarity relations (CCRs) is analyzed. Building on previous results for qubits, it is shown that the average distributed entanglement between two parties via ESP is bounded above by the initial entanglement of one of the input pairs, and also by the product of the initial entanglements. Notably, it is found that using initial states with vanishing local quantum coherence is sufficient to capture the essential features of the protocol, simplifying the analysis. By exploring the cases of qubits and qutrits, it is observed that the upper bound on the average distributed entanglement—expressed in terms of the product of the initial entanglements—can be improved, and what this tighter bound might be is conjectured. Finally, the role of quantum complementarity in the ESP is discussed and how local predictability constrains the entanglement that can be operationally distributed via ESP is shown.

arXiv:2508.00813•Advanced Quantum Technologies•Oct 22, 2025•0 citations

Quantum Entanglement Swapping in a Non-Markovian Environment

Chun Miao, Ming Yang, Zhuo‐Liang Cao

International Journal of Theoretical Physics•Jun 13, 2012•4 citations

Entanglement Distribution in Quantum Networks Via Swapping of Partially Entangled Pure States

Henrique Guerra, Tailan S. Sarubi, Rafael Chaves +1 more

ABSTRACT The entanglement swapping protocol (ESP) is a fundamental primitive for distributing quantum correlations across distant nodes in a quantum network. Recent studies have demonstrated that even when the involved qubit pairs are only partially entangled, it is still possible to concentrate and transmit entanglement via Bell‐basis measurements. In this work, we extend these ideas to quantum networks with various topologies–including linear, star, and hybrid configurations–by analyzing the application of the ESP to initially partially entangled pure states. We investigate how entanglement evolves under such protocols by considering the transformations of the initial states and evaluating the success probabilities for generating maximally entangled states at the output. Our results offer new insights into the dynamics of the entanglement distribution in quantum networks.

arXiv:2508.04536•Annalen der Physik•Mar 1, 2026•0 citations

The Local Orthogonality Between Quantum States and Entanglement Decomposition

Sunho Kim, Junde Wu, Lin Zhang +1 more

arXiv:1411.0216•International Journal of Theoretical Physics•Jan 19, 2016•0 citations

All-Versus-Nothing Violation of Local Realism by Swapping Entanglement

Zeng‐Bing Chen, Yu-Ao Chen, Jian-Wei Pan

The usual entanglement swapping protocol can entangle two particles that never interact. Here we demonstrate an all-versus-nothing violation of local realism for a partial entanglement swapping process. A Clauser-Horne-Shimony-Holt-type inequality for two particles entangled by entanglement swapping is proposed for a practical experiment and can be violated quantum mechanically up to 4 beyond Cirel'son's bound 2sqr(2). Our result uncovers the intriguing nonlocal character of entanglement swapping and may lead to a conclusive (loophole-free) test of local realism versus quantum mechanics. The experimental test of the nonlocality under current technology is also discussed.

arXiv:quant-ph/0505178•May 24, 2005•2 citations
Abstract The entanglement swapping protocol (ESP) is extended to partially entangled qudit states and the process within the framework of complete complementarity relations (CCRs) is analyzed. Building on previous results for qubits, it is shown that the average distributed entanglement between two parties via ESP is bounded above by the initial entanglement of one of the input pairs, and also by the product of the initial entanglements. Notably, it is found that using initial states with vanishing local quantum coherence is sufficient to capture the essential features of the protocol, simplifying the analysis. By exploring the cases of qubits and qutrits, it is observed that the upper bound on the average distributed entanglement—expressed in terms of the product of the initial entanglements—can be improved, and what this tighter bound might be is conjectured. Finally, the role of quantum complementarity in the ESP is discussed and how local predictability constrains the entanglement that can be operationally distributed via ESP is shown.
ABSTRACT The entanglement swapping protocol (ESP) is a fundamental primitive for distributing quantum correlations across distant nodes in a quantum network. Recent studies have demonstrated that even when the involved qubit pairs are only partially entangled, it is still possible to concentrate and transmit entanglement via Bell‐basis measurements. In this work, we extend these ideas to quantum networks with various topologies–including linear, star, and hybrid configurations–by analyzing the application of the ESP to initially partially entangled pure states. We investigate how entanglement evolves under such protocols by considering the transformations of the initial states and evaluating the success probabilities for generating maximally entangled states at the output. Our results offer new insights into the dynamics of the entanglement distribution in quantum networks.
The usual entanglement swapping protocol can entangle two particles that never interact. Here we demonstrate an all-versus-nothing violation of local realism for a partial entanglement swapping process. A Clauser-Horne-Shimony-Holt-type inequality for two particles entangled by entanglement swapping is proposed for a practical experiment and can be violated quantum mechanically up to 4 beyond Cirel'son's bound 2sqr(2). Our result uncovers the intriguing nonlocal character of entanglement swapping and may lead to a conclusive (loophole-free) test of local realism versus quantum mechanics. The experimental test of the nonlocality under current technology is also discussed.