Full-field mode sorter using two optimized phase transformations for high-dimensional quantum cryptography
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Full-field mode sorter using two optimized phase transformations for high-dimensional quantum cryptography. / Fickler, Robert; Bouchard, Frédéric; Giese, Enno; Grillo, Vincenzo; Leuchs, Gerd; Karimi, Ebrahim.
julkaisussa: Journal of Optics (United Kingdom), Vuosikerta 22, Nro 2, 024001, 2020.Tutkimustuotos › › vertaisarvioitu
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TY - JOUR
T1 - Full-field mode sorter using two optimized phase transformations for high-dimensional quantum cryptography
AU - Fickler, Robert
AU - Bouchard, Frédéric
AU - Giese, Enno
AU - Grillo, Vincenzo
AU - Leuchs, Gerd
AU - Karimi, Ebrahim
PY - 2020
Y1 - 2020
N2 - High-dimensional encoding schemes have emerged as a novel way to perform quantum information tasks. For high dimensionality, temporal and transverse spatial modes of photons are the two paradigmatic degrees of freedom commonly used in such experiments. Nevertheless, general devices for multi-outcome measurements are still needed to take full advantage of the high-dimensional nature of encoding schemes. We propose a general full-field mode sorting scheme consisting of only up to two optimized phase elements based on evolutionary algorithms that allows for joint sorting of azimuthal and radial modes. We further study the performance of our scheme through simulations in the context of high-dimensional quantum cryptography, where sorting in different mutually unbiased bases and high-fidelity measurement schemes are crucial.
AB - High-dimensional encoding schemes have emerged as a novel way to perform quantum information tasks. For high dimensionality, temporal and transverse spatial modes of photons are the two paradigmatic degrees of freedom commonly used in such experiments. Nevertheless, general devices for multi-outcome measurements are still needed to take full advantage of the high-dimensional nature of encoding schemes. We propose a general full-field mode sorting scheme consisting of only up to two optimized phase elements based on evolutionary algorithms that allows for joint sorting of azimuthal and radial modes. We further study the performance of our scheme through simulations in the context of high-dimensional quantum cryptography, where sorting in different mutually unbiased bases and high-fidelity measurement schemes are crucial.
KW - mode demultiplexing high-dimensional quantum information
KW - quantum cryptography
KW - transverse spatial modes
U2 - 10.1088/2040-8986/ab6303
DO - 10.1088/2040-8986/ab6303
M3 - Article
VL - 22
JO - Journal of Optics
JF - Journal of Optics
SN - 2040-8978
IS - 2
M1 - 024001
ER -