1 Department of Science, Govt. Polytechnic, Harapanahalli-583131, Karnataka, India.
2 Department of Science, Govt. Polytechnic, Chitradurga-577501 Karnataka, India.
3 Department of Science, Govt. Polytechnic, Rabakavi-587314, Banahatti, Karnataka, India.
Review Article
World Journal of Advanced Research and Reviews, 2019, 01(01), 082-088
Received on 02 January 2019; revised on 20 February 2019; accepted on 23 February 2019
Quantum entanglement is a fundamental and intriguing phenomenon in quantum mechanics, wherein two or more particles become correlated in such a way that the state of one instantaneously influences the state of the other, regardless of the distance separating them. This research delves into the theoretical foundation of quantum entanglement, exploring its mathematical formulation, key experimental validations, and implications for emerging technologies. A primary focus is placed on its application in secure communication, particularly in Quantum Key Distribution (QKD), where entanglement enables fundamentally secure cryptographic protocols resistant to eavesdropping. We present an in-depth analysis of various QKD protocols, including BB84, E91, and decoy-state methods, assessing their security, efficiency, and practical feasibility. Recent experimental advancements in entanglement-based cryptography are examined, alongside real-world implementations and their technical challenges, such as photon loss, decoherence, and scalability in long-distance quantum communication networks. Additionally, we provide comparative insights into the efficiency of different QKD protocols using a bar chart, while figures and tables illustrate core quantum principles and experimental setups. By addressing both theoretical and practical aspects, this study contributes to a comprehensive understanding of quantum entanglement’s role in secure communication and highlights future directions for overcoming existing technological limitations.
Quantum Entanglement; Quantum Key Distribution (QKD); Secure Communication; Bell’s Inequality; Quantum Cryptography
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Lingaraju M P, Bharath Kumar T and Jayachandra C. Quantum entanglement and its implications for secure communication. World Journal of Advanced Research and Reviews, 2019, 1(1), 082-088. Article DOI: https://doi.org/10.30574/wjarr.2019.1.1.0003