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Papers on “quantum entanglement communication information”

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1. Trading classical communication, quantum communication, and entanglement in quantum Shannon theory

   Min-Hsiu Hsieh, Mark M Wilde · 2010 · IEEE Transactions on Information Theory · 63 cites

2. Photonic entanglement for fundamental tests and quantum communication

   Wolfgang Tittel, Gregor Weihs · 2001 · Quantum Information and Computation · 60 cites

   Entanglement is at the heart of fundamental tests of quantum mechanics like tests of Bell-inequalities and, as discovered lately, of quantum computation and communication. Their technological advance made entangled photons play an outstanding role in entanglement physics. We give a generalized concept of qubit entanglement and review the state of the art of photonics experiments.

3. Quantum Entanglement and Its Application in Quantum Communication

   Nanxi Zou · 2021 · Journal of Physics: Conference Series · 57 cites

   Since the concept of quantum entanglement was proposed, quantum entanglement has been paid more and more attention. Especially in recent years, with the interdisciplinary and interdisciplinary development of quantum informatics, the general definition, physical properties and entanglement measurement of quantum entanglement have been comprehensively and deeply studied. Due to its nonlocality, quantum entanglement has been widely used in quantum information, especially in quantum communication. In view of the application status of quantum entanglement in quantum communication, this paper presents a survey of quantum entanglement and its application in quantum communication. In this paper, 230

4. Entanglement Routing Design Over Quantum Networks

   Yiming Zeng, Jiarui Zhang, Ji Liu, et al. · 2024 · IEEE/ACM Transactions on Networking · 44 cites

   Quantum networks have emerged as a future platform for quantum information exchange and applications, with promising capabilities far beyond traditional communication networks. Remote quantum entanglement is an essential component of a quantum network. How to efficiently design a multi-routing entanglement protocol is a fundamental yet challenging problem. In this paper, we study a quantum entanglement routing problem to simultaneously maximize the number of quantum-user pairs and their expected throughput. Our approach is to formulate the problem as two sequential integer programming problems. We propose efficient entanglement routing algorithms for these two optimization problems and analy

5. Ultrabright Entanglement Based Quantum Key Distribution over a 404 km Optical Fiber.

   Shi-Chang Zhuang, Bo Li, Ming-Yang Zheng, et al. · 2024 · Physical review letters · 31 cites

   Entangled photons are crucial resources for quantum information processing. Here, we present an ultrabright polarization-entangled photon source based on a periodically poled lithium niobate waveguide designed for practical quantum communication networks. Using a 780 nm pump laser, the source achieves a pair generation rate of 2.4×10^{10}  pairs/s/mW. Remarkably, the entangled photons are bright enough to be detected by a power meter, reaching a power of 17.9 nW under a pump power of 3.2 mW. We demonstrate the practicality of the source by conducting quantum key distribution experiments over long-distance fiber links. Wavelength-division multiplexing was employed to enhance the key generatio

6. Quantum entanglement and interference at 3 μm

   Zheng Ge, Zhao-Qi-Zhi Han, Fan Yang, et al. · 2024 · Science Advances · 29 cites

   Given the important advantages of the mid-infrared optical range (2.5 to 25 μm) for biomedical sensing, optical communications, and molecular spectroscopy, extending quantum information technology to this region is highly attractive. However, the development of mid-infrared quantum information technology is still in its infancy. Here, we report on the generation of a time-energy entangled photon pair in the mid-infrared wavelength band. By using frequency upconversion detection technology, we observe the two-photon Hong-Ou-Mandel interference and demonstrate the time-energy entanglement between twin photons at 3082 nm via the Franson-type interferometer, verifying the indistinguishability an

7. High‐Dimensional Entanglement for Quantum Communication in the Frequency Domain

   Meritxell Cabrejo-Ponce, A. L. M. Muniz, Marcus Huber, et al. · 2022 · Laser & Photonics Reviews · 29 cites

   High‐dimensional photonic entanglement is a promising candidate for error‐protected quantum information processing with improved capacity. Encoding high‐dimensional qudits in the carrier frequency of photons combines ease of generation, universal single‐photon gates, and compatibility with fiber transmission for high‐capacity quantum communication. Recent landmark experiments have impressively demonstrated quantum interference of a few frequency modes, yet the certification of massive‐dimensional frequency entanglement has remained an open challenge. This study shows how to harness the large frequency‐entanglement inherent in standard continuous‐wave spontaneous parametric down‐conversion pr

8. Optimized Distribution of Entanglement Graph States in Quantum Networks

   Xiaojie Fan, Caitao Zhan, Himanshu Gupta, et al. · 2024 · IEEE Transactions on Quantum Engineering · 28 cites

   Building large-scale quantum computers, essential to demonstrating quantum advantage, is a key challenge. Quantum networks can help address this challenge by enabling the construction of large, robust, and more capable quantum computing platforms by connecting smaller quantum computers. Moreover, unlike classical systems, quantum networks can enable fully secured long-distance communication. Thus, quantum networks lie at the heart of the success of future quantum information technologies. In quantum networks, multipartite entangled states distributed over the network help implement and support many quantum network applications for communications, sensing, and computing. Our work focuses on d