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High‐Dimensional Quantum Communication: Benefits, Progress, and Future Challenges (Adv. Quantum Technol. 12/2019)
Author(s) -
Cozzolino Daniele,
Da Lio Beatrice,
Bacco Davide,
Oxenløwe Leif Katsuo
Publication year - 2019
Publication title -
advanced quantum technologies
Language(s) - English
Resource type - Journals
ISSN - 2511-9044
DOI - 10.1002/qute.201970073
Subject(s) - qubit , cover (algebra) , computer science , quantum , transmission (telecommunications) , simple (philosophy) , photonics , quantum information science , quantum state , quantum information , theoretical computer science , hilbert space , telecommunications , quantum mechanics , statistical physics , physics , quantum entanglement , engineering , philosophy , epistemology , mechanical engineering
Quantum communication with states living in d ‐dimensional Hilbert spaces, qudits, yields great benefits. The main and clear advantage is that they can carry a larger amount of information per particle compared to 2D systems, qubits. The cover image figuratively shows this principle. However, qudits generation, transmission, and detection are not simple tasks to accomplish. Davide Bacco, Leif Katsuo Oxenløwe, and co‐workers (article number 1900038) review the state‐of‐the‐art on these topics, involving high‐dimensional photonic quantum states, highlighting their advantages, issues, and future perspectives.