Open Access

ARTICLE

Design and Implementation of Quantum Repeaters: Insights on Quantum Entanglement Purification

by Karoki A. Mũgambi^*, Geoffrey O. Okeng’o

The Astrophysics and Space Science Research Group, Department of Physics, Faculty of Science and Technology, University of Nairobi, Nairobi, Kenya

* Corresponding Author: Karoki A. Mũgambi. Email:

Journal of Quantum Computing 2023, 5, 25-40. https://doi.org/10.32604/jqc.2023.045654

Received 03 September 2023; Accepted 10 November 2023; Issue published 12 December 2023

Abstract

Quantum communication is a groundbreaking technology that is driving the future of information transmission and communication technologies to a new paradigm. It relies on quantum entanglement to facilitate the transmission of quantum states between parties. Quantum repeaters are crucial for facilitating long-distance quantum communication. These quantum devices act as intermediaries between adjacent communication channel segments within a fragmented quantum network, allowing for entanglement swapping between the channel segments. This entanglement swapping process establishes entanglement links between the endpoints of adjacent segments, gradually creating a continuous entanglement connection over the entire length of the transmission channel. The established quantum link can be utilized for secure and efficient quantum communication between distant sender and receiver nodes. This study focuses on quantum entanglement purification, a protocol aimed at maintaining high fidelity entangled states above the operational threshold of the communication channel. This study investigates the optimal stage for executing the purification protocol and applies optimization schemes to evaluate various purification protocols. We use IBM Qiskit for circuit implementation and simulation. The results offer valuable insights into future approaches to implementing practical quantum repeaters and shed light on existing and anticipated challenges.

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Keywords

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