TY - JOUR
T1 - High-Dimensional Quantum Communication: Benefits, Progress, and Future Challenges
AU - Cozzolino, Daniele
AU - da Lio, Beatrice
AU - Bacco, Davide
AU - Oxenløwe, Leif Katsuo
PY - 2019
Y1 - 2019
N2 - In recent years, there has been a rising interest in high-dimensional quantum states and their impact on quantum communication. Indeed, the availability of an enlarged Hilbert space offers multiple advantages, from larger information capacity and increased noise resilience, to novel fundamental research possibilities in quantum physics. Multiple photonic degrees of freedom have been explored to generate high-dimensional quantum states, both with bulk optics and integrated photonics. Furthermore, these quantum states have been propagated through various channels, for example, free-space links, single-mode, multicore, and multimode fibers, and also aquatic channels, experimentally demonstrating the theoretical advantages over 2D systems. Here, the state-of-the-art on the generation, propagation, and detection of high-dimensional quantum states is reviewed. Quantum communication with states living in d-dimensional Hilbert spaces, qudits, yields great benefits. However, qudits generation, transmission, and detection is not a simple task to accomplish. This review presents the state-of-the-art on the generation, propagation, and measurement of high-dimensional quantum states, highlighting their advantages, issues, and future perspectives.
AB - In recent years, there has been a rising interest in high-dimensional quantum states and their impact on quantum communication. Indeed, the availability of an enlarged Hilbert space offers multiple advantages, from larger information capacity and increased noise resilience, to novel fundamental research possibilities in quantum physics. Multiple photonic degrees of freedom have been explored to generate high-dimensional quantum states, both with bulk optics and integrated photonics. Furthermore, these quantum states have been propagated through various channels, for example, free-space links, single-mode, multicore, and multimode fibers, and also aquatic channels, experimentally demonstrating the theoretical advantages over 2D systems. Here, the state-of-the-art on the generation, propagation, and detection of high-dimensional quantum states is reviewed. Quantum communication with states living in d-dimensional Hilbert spaces, qudits, yields great benefits. However, qudits generation, transmission, and detection is not a simple task to accomplish. This review presents the state-of-the-art on the generation, propagation, and measurement of high-dimensional quantum states, highlighting their advantages, issues, and future perspectives.
U2 - 10.1002/qute.201900038
DO - 10.1002/qute.201900038
M3 - Journal article
SN - 2511-9044
JO - Advanced Quantum Technologies
JF - Advanced Quantum Technologies
M1 - 1900038
ER -