Academic literature on the topic 'Quantum coherent communications'

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Journal articles on the topic "Quantum coherent communications"

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Djordjevic, Ivan B. "LDPC-Coded Optical Coherent State Quantum Communications." IEEE Photonics Technology Letters 19, no. 24 (2007): 2006–8. http://dx.doi.org/10.1109/lpt.2007.909688.

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Pittaluga, Mirko, Yuen San Lo, Adam Brzosko, et al. "Long-distance coherent quantum communications in deployed telecom networks." Nature 640, no. 8060 (2025): 911–17. https://doi.org/10.1038/s41586-025-08801-w.

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Sidhu, Jasminder S., Michael S. Bullock, Saikat Guha, and Cosmo Lupo. "Linear optics and photodetection achieve near-optimal unambiguous coherent state discrimination." Quantum 7 (May 31, 2023): 1025. http://dx.doi.org/10.22331/q-2023-05-31-1025.

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Coherent states of the quantum electromagnetic field, the quantum description of ideal laser light, are prime candidates as information carriers for optical communications. A large body of literature exists on their quantum-limited estimation and discrimination. However, very little is known about the practical realizations of receivers for unambiguous state discrimination (USD) of coherent states. Here we fill this gap and outline a theory of USD with receivers that are allowed to employ: passive multimode linear optics, phase-space displacements, auxiliary vacuum modes, and on-off photon det
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Scalari, Giacomo, Urban Senica, Andres Forrer, et al. "THz frequency combs for integrated coherent photonics." SPG Mitteilungen - Communications de la SSP 70 (July 1, 2023): 42–47. https://doi.org/10.5281/zenodo.10086365.

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Эскандери, М. М., Д. Б. Хорошко та С. Я. Килин. "Безошибочное различение когерентных состояний двухмодового оптического поля". Журнал технической физики 128, № 8 (2020): 1171. http://dx.doi.org/10.21883/os.2020.08.49716.83-20.

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The procedure of a quantum measurement, the unambiguous state discrimination, is studied for the case of four two-mode coherent states of the optical field, interesting for information transmission via an optical communication channel. It is shown that a complex conjugation of the amplitude of one of the modes results in a better distinguishability of the states. An interferometric scheme is suggested for unambiguous discrimination of such states and the probability of successful discrimination is found. Applications of the considered state set are discussed for quantum cryptography, quantum t
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Kato, Kentaro. "Non-Orthogonality of QAM and Sunflower-like Modulated Coherent-State Signals." Entropy 27, no. 1 (2025): 30. https://doi.org/10.3390/e27010030.

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The limitations of cloning and discriminating quantum states are related to the non-orthogonality of the states. Hence, understanding the collective features of quantum states is essential for the future development of quantum communications technology. This paper investigates the non-orthogonality of different coherent-state signal constellations used in quantum communications, namely phase-shift keying (PSK), quadrature-amplitude modulation (QAM), and a newly defined signal named the sunflower-like (SUN) coherent-state signal. The non-orthogonality index (NOI) and the average probability of
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PIRANDOLA, STEFANO. "A QUANTUM TELEPORTATION GAME." International Journal of Quantum Information 03, no. 01 (2005): 239–43. http://dx.doi.org/10.1142/s0219749905000815.

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We investigate a game where a sender (Alice) teleports coherent states to two receivers (Bob and Charlie) through a tripartite Gaussian state. The aim of the receivers is to optimize their teleportation fidelities by means of local operations and classical communications. We show that a non-cooperative strategy corresponding to the standard telecloning protocol can be outperformed by a cooperative strategy which gives rise to a novel (cooperative) telecloning protocol.
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Meddour, H., Sh Askar, S. Dehraj, et al. "Efficient two-dimensional Fraunhofer diffraction pattern via electron spin coherence." Laser Physics 33, no. 11 (2023): 116003. http://dx.doi.org/10.1088/1555-6611/acfd9a.

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Abstract In this letter, we have discussed the two-dimensional diffraction pattern via electron spin coherence in a GaAs quantum dot. Impulsive stimulated Raman excitation utilizing coherent optical fields is employed for the purpose of regulating the electron spin coherence within a charged ensemble of GaAs quantum dots, by means of an intermediate charged exciton (trion) state. We show that for the coupling two-dimensional standing wave (SW) field in the x and y directions, the two-dimensional Fraunhofer pattern can be formed for a weak probe light. By using the experimental parameters and c
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Vorontsova, I. O., R. K. Goncharov, D. V. Tupyakov, F. D. Kiselev, and V. I. Egorov. "Numerical approach to compound quantum repeater scheme with coherent states." Computer Optics 48, no. 1 (2024): 81–85. http://dx.doi.org/10.18287/2412-6179-co-1322.

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A numerical model of a quantum repeater operating with Schrödinger cat states is constructed. The model describes the performance of such a system in the presence of decoherence effects, namely, noise in the quantum channel and the efficiency of the photon-number-resolving detector. In the framework of the numerical model, a theoretical analysis of the system functioning is carried out for the elementary link by calculating its performance characteristics. Namely, we calculate photodetector click probabilities and fidelity for various sets of decoherence parameters. These estimates are necessa
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Becerra, F. E., J. Fan, and A. Migdall. "Photon number resolution enables quantum receiver for realistic coherent optical communications." Nature Photonics 9, no. 1 (2014): 48–53. http://dx.doi.org/10.1038/nphoton.2014.280.

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Dissertations / Theses on the topic "Quantum coherent communications"

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Aymeric, Raphaël. "Convergence of quantum and classical communications." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. https://theses.hal.science/tel-03919212.

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Les protocoles de distribution de clé quantique (QKD) permettent de construire des canaux de communications sensibles à l’espionnage grâce aux propriétés quantiques fondamentales de la lumière. L’un des principaux défis à surpasser pour déployer de tels protocoles à grande échelle est le coût de déploiement de la technologie. Une solution attrayante en ce sens serait d’exploiter l’infrastructure de fibre optique déjà existante pour exécuter mettre en oeuvre de tels protocoles. Cela implique cependant de faire coexister des signaux quantiques avec des signaux telecoms classiques, ce qui peut êt
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Pes, Salvatore. "Nanostructures-based 1.55 μm-emitting Vertical-(External)-Cavity Surface-Emitting Lasers for microwave photonics and coherent communications". Thesis, Rennes, INSA, 2019. https://tel.archives-ouvertes.fr/tel-02892844.

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Les travaux de thèse présentés en ce mémoire ont comme objectif principal le développement des sources lasers à semi- conducteurs en cavité verticale sur substrat InP, intègrent des régions actives à nanostructure quantiques, et émettent à des longueurs d’onde “télécom” (1550-1600 nm). Le développement d’un nouveau procédé technologique pour la réalisation de composants VCSEL compactes est détaillé. Ce procédé (nommé TSHEC) a été utilisé pour réaliser des émetteurs VCSELs en pompage optique sur plateforme hôte Si, ayant des performances très satisfaisantes. Ce même procédé a été adapté à la ré
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Harrow, Aram (Aram Wettroth) 1980. "Applications of coherent classical communication and the Schur transform to quantum information theory." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34973.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2005.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 167-176).<br>Quantum mechanics has led not only to new physical theories, but also a new understanding of information and computation. Quantum information not only yields new methods for achieving classical tasks such as factoring and key distribution but also suggests a completely new set of quantum problems, such as sending
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LI, XIAOXU. "WAVELENGTH-DIVISION-MULTIPLEXED TRANSMISSION USING SEMICONDUCTOR OPTICAL AMPLIFIERS AND ELECTRONIC IMPAIRMENT COMPENSATION." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4025.

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Over the last decade, rapid growth of broadband services necessitated research aimed at increasing transmission capacity in fiber-optic communication systems. Wavelength division multiplexing (WDM) technology has been widely used in fiber-optic systems to fully utilize fiber transmission bandwidth. Among optical amplifiers for WDM transmission, semiconductor optical amplifier (SOA) is a promising candidate, thanks to its broad bandwidth, compact size, and low cost. In transmission systems using SOAs, due to their large noise figures, high signal launching powers are required to ensure reasonab
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Jarzyna, Marcin. "Phase coherence in quantum metrology and communication." Doctoral thesis, 2016. https://depotuw.ceon.pl/handle/item/1715.

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Zhong, Manjin. "Development of Persistent Quantum Memories." Phd thesis, 2017. http://hdl.handle.net/1885/133864.

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This thesis investigates the coherence properties of the hyperfine transitions of the 151Eu3+ ions in Eu3+:Y2SiO5 and evaluates the potential of developing quantum memories using these transitions. Quantum memories for light with long storage times are required for quantum commu- nication applications. For these memories to be useful they need to have storage times long compared to the transmission times across the communication network. For a global optical communication network this requires storage time longer than 100 ms. Rare-earth doped crysta
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Rufeil, Fiori Elena. "Dinámica coherente de excitaciones de carga y espín en sistemas unidimensionales /." Doctoral thesis, 2009. http://hdl.handle.net/11086/133.

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Tesis (Doctor en Física)--Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física, 2009.<br>El control y diseño de la dinámica cuántica constituye el núcleo del procesamiento de información cuántica. Sin embargo, en sistemas de espines acoplados la alta conectividad de las interacciones y la complejidad de los estados accesibles a temperatura ambiente dificultan la obtención del grado de control necesario. En esta tesis mostramos alternativas para obtener una dinámica coherente controlada que puede obtenerse en sistemas de espines interactuantes en experimentos de NMR.
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Books on the topic "Quantum coherent communications"

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1964-, Buchleitner A., Viviescas C, and Tiersch M, eds. Entanglement and decoherence: Foundations and modern trends. Springer, 2009.

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Greve, Kristiaan De. Towards Solid-State Quantum Repeaters: Ultrafast, Coherent Optical Control and Spin-Photon Entanglement in Charged InAs Quantum Dots. Springer, 2016.

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Greve, Kristiaan De. Towards Solid-State Quantum Repeaters: Ultrafast, Coherent Optical Control and Spin-Photon Entanglement in Charged Inas Quantum Dots. Springer London, Limited, 2013.

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Kurizki, Gershon, and Goren Gordon. The Quantum Matrix. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198787464.001.0001.

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“Meet Henry Bar, a physicist and … quantum superhero.” The title The Quantum Matrix refers to a central concept in quantum physics, but also (allegorically) to our enigmatic world. In this book, Henry Bar, physicist and the first quantum superhero, guides the reader through the amazing quantum world. Henry’s hair-raising adventures in his perilous struggle for quantum coherence are graphically depicted by comics and thoroughly explained to the lay reader. Behind each adventure lies a key concept in quantum physics. These concepts range from the basic quantum coherence and entanglement through
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Perillán, José G. Science Between Myth and History. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198864967.001.0001.

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Scientists regularly employ historical narrative as a rhetorical tool in their communication of science, yet there’s been little reflection on its effects within scientific communities and beyond. Science Between Myth and History begins to unravel these threads of influence. The stories scientists tell are not just poorly researched scholarly histories, they are myth-histories, a chimeric genre that bridges distinct narrative modes. This study goes beyond polarizing questions about who owns the history of science and establishes a common ground from which to better understand the messy and la
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Book chapters on the topic "Quantum coherent communications"

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Westmoreland, Michael, and Benjamin Schumacher. "Capacities of Quantum Channels and Quantum Coherent Information." In Quantum Computing and Quantum Communications. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-49208-9_25.

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Aschauer, Hans, and Hans J. Briegel. "Quantum Communication and Decoherence." In Coherent Evolution in Noisy Environments. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45855-7_6.

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Leonhardt, Ulf, and Igor Jex. "Quantum-State Tomography and Quantum Communication." In Coherence and Quantum Optics VII. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9742-8_208.

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Kumar, P. "Fiber generated quantum correlations for quantum-optical communications." In Coherence and Quantum Optics VIII. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_21.

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Fiorentino, M., J. E. Sharping, A. Coker, and P. Kumar. "Fiber generated quantum correlations for quantum-optical communications." In Coherence and Quantum Optics VIII. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_64.

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Burkard, Guido, Hans-Andreas Engel, and Daniel Loss. "Spintronics and Quantum Dots for Quantum Computing and Quantum Communication." In Complexity from Microscopic to Macroscopic Scales: Coherence and Large Deviations. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0419-0_4.

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Tosi, M. P. "Coherence and Superfluidity in Atomic Gases." In Quantum Communication and Information Technologies. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0171-7_13.

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Li, Ming, and Li Li. "Coherent State Based Quantum Optical Communication with Mature Classical Infrastructure." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-9409-6_323.

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Vourdas, A. "Resolutions of the Identity in Terms of Line Integrals of Coherent States and Their Use for Quantum State Engineering." In Quantum Communication, Computing, and Measurement. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5923-8_28.

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Ma, Xudong, and Yongming Li. "Coherence of Quantum States Based on Mutually Unbiased Bases in $$\mathbb {C}^4$$." In Communications in Computer and Information Science. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-8152-4_3.

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Conference papers on the topic "Quantum coherent communications"

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Weinstein, Haley, Bruno Avritzer, Todd A. Brun, and Jonathan L. Habif. "Experimental Implementation of Quantum Steganography Using Coherent States." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jw2a.224.

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We devise a system to measure the quantum density matrix of different noises and then control these noises to achieve positive rate covert communications. This is demonstrated for thermal noise in an optical communication link.
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Kato, Kentaro, and Osamu Hirota. "Quantum quadrature amplitude modulation system and its applicability to coherent-state quantum cryptography." In Quantum Communications and Quantum Imaging III. SPIE, 2005. http://dx.doi.org/10.1117/12.618719.

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Khalil, Mostafa, Adrian Chan, Lawrence R. Chen, David V. Plant, and Randy Kuang. "Quantum-Inspired Encryption Using Displacement Operators in Coherent Optical Communications." In Signal Processing in Photonic Communications. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/sppcom.2024.spw2h.6.

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We demonstrate experimental results of a physical layer encryption technique based on displacement operators in coherent optical transmission systems. The system is tested over 80 km of SSMF using 4/16/32QAM at 56 GBd.
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Ge, Yifan, Xubiao Zhang, Jiajia Shen, Jiamin Fan, Fengge Wang, and Mingyi Gao. "Quantum Random Number Generator Based on Coherent Optical Receiver." In 2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Communications (IPOC). IEEE, 2024. https://doi.org/10.1109/acp/ipoc63121.2024.10809531.

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Garnier, Maxime, Dominik Leichtle, Luka Music, and Harold Ollivier. "Composably Secure Delegated Quantum Computation with Weak Coherent Pulses." In 2024 International Conference on Quantum Communications, Networking, and Computing (QCNC). IEEE, 2024. http://dx.doi.org/10.1109/qcnc62729.2024.00042.

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da Silva, Valéria Loureiro, Micael Andrade Dias, Nelson Alves Ferreira Neto, and Alexandre B. Tacla. "From Coherent Communications to Quantum Security: Modern Techniques in CV-QKD." In 2024 SBFoton International Optics and Photonics Conference (SBFoton IOPC). IEEE, 2024. https://doi.org/10.1109/sbfotoniopc62248.2024.10813518.

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Du, Haoze, Chao Lei, Zonglong He, et al. "Highly Secure Self-homodyne Coherent System Empowered by Quantum Noise Stream Cipher." In 2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Communications (IPOC). IEEE, 2024. https://doi.org/10.1109/acp/ipoc63121.2024.10809724.

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Sun, Jihui, Lin Jiang, Xingehen He, et al. "Field Trial of 90.81Tbit/s C+ L-Band Quantum Noise Stream Cipher Coherent Transmission Over 112km of Deployed Commercial Fiber." In 2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Communications (IPOC). IEEE, 2024. https://doi.org/10.1109/acp/ipoc63121.2024.10809942.

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Zhu, Miao, Rentao Gu, Jiangshan Dong, Lin Bai, Hui Li, and Yuefeng Ji. "Hybrid Quantum-Classical Computing Mechanism for Dynamic QoT-Aware Resource Allocation in Multi-Band Flexible Optical Network." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.th1h.1.

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We propose a hybrid quantum-classical computing mechanism with Coherent Ising Machine for dynamic QoT-aware RMSA in MB-FONs. The solution time is reduced from nearly 2 sec to 323 μs compared with the auxiliary graph method.
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Beppu, Shohei, Daniel J. Elson, Shinya Murai, et al. "Coexistence Transmission of 33.4-Tb/s O-band Coherent Classical Channels and a C-band QKD Channel over 80 km." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.tu3d.2.

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A record data transmission capacity of 33.4 Tb/s over 80 km is achieved in quantum-classical channel coexistence transmission by multiplexing 13.1-THz O-band coherent classical channels with a C-band DV-QKD channel. © 2025 The Author(s)
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Reports on the topic "Quantum coherent communications"

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Pasupuleti, Murali Krishna. Scalable Quantum Networks: Entanglement-Driven Secure Communication. National Education Services, 2025. https://doi.org/10.62311/nesx/rrvi525.

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Abstract: Scalable quantum networks, powered by entanglement-driven secure communication, are poised to revolutionize global information exchange, cybersecurity, and quantum computing infrastructures. Unlike classical communication systems, quantum networks leverage quantum entanglement and superposition to enable ultra-secure data transmission, quantum key distribution (QKD), and instantaneous information sharing across large-scale networks. This research explores the fundamental principles of entanglement-based communication, the role of quantum repeaters, quantum memory, and multi-nodal ent
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Perdigão, Rui A. P. New Horizons of Predictability in Complex Dynamical Systems: From Fundamental Physics to Climate and Society. Meteoceanics, 2021. http://dx.doi.org/10.46337/211021.

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Discerning the dynamics of complex systems in a mathematically rigorous and physically consistent manner is as fascinating as intimidating of a challenge, stirring deeply and intrinsically with the most fundamental Physics, while at the same time percolating through the deepest meanders of quotidian life. The socio-natural coevolution in climate dynamics is an example of that, exhibiting a striking articulation between governing principles and free will, in a stochastic-dynamic resonance that goes way beyond a reductionist dichotomy between cosmos and chaos. Subjacent to the conceptual and ope
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