DOAJ Open Access 2020

Entanglement Distribution in a Quantum Network: A Multicommodity Flow-Based Approach

Kaushik Chakraborty David Elkouss Bruno Rijsman Stephanie Wehner

Abstrak

We consider the problem of optimizing the achievable EPR-pair distribution rate between multiple source-destination pairs in a quantum Internet, where the repeaters may perform a probabilistic Bell-state measurement and we may impose a minimum end-to-end fidelity as a requirement. We construct an efficient linear programming (LP) formulation that computes the maximum total achievable entanglement distribution rate, satisfying the end-to-end fidelity constraint in polynomial time (in the number of nodes in the network). Our LP formulation gives the optimal rate for a class of entanglement generation protocols where the repeaters have very short-lived quantum memories. We also propose an efficient algorithm that takes the output of the LP solver as an input and runs in polynomial time (in the number of nodes) to produce the set of paths to be used to achieve the entanglement distribution rate. Moreover, we point out a practical entanglement generation protocol that can achieve those rates.

Topik & Kata Kunci

Atomic physics. Constitution and properties of matter Materials of engineering and construction. Mechanics of materials

Penulis (4)

Kaushik Chakraborty

David Elkouss

Bruno Rijsman

Stephanie Wehner

Format Sitasi

APA MLA BibTeX

Chakraborty, K., Elkouss, D., Rijsman, B., Wehner, S. (2020). Entanglement Distribution in a Quantum Network: A Multicommodity Flow-Based Approach. https://doi.org/10.1109/TQE.2020.3028172

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Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1109/TQE.2020.3028172
Akses: Open Access ✓