High-fidelity quantum gates for OAM qudits on quantum memory

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High-fidelity quantum gates for OAM qudits on quantum memory. / Vashukevich, E. A.; Golubeva, T. Yu; Golubev, Yu M.

2021.

Research output: Working paper › Preprint

BibTeX

@techreport{5991051fdd39456f8f4ac4897396a223,

title = "High-fidelity quantum gates for OAM qudits on quantum memory",

abstract = "The application of high-dimensional quantum systems (qudits) in quantum computing and communications seems to be a promising avenue due to the possibility of increasing the amount of information encoded in one physical carrier. In this work, we propose a method for implementing single-qudit gates for qudits based on light modes with orbital angular momentum. Method for logical qudits encoding, which ensures the quasi-cyclicity of operations, is introduced. Based on the protocol for converting the orbital angular momentum of light in the Raman quantum memory scheme [Vashukevich E.A. et. al. PRA, 101, 033830 (2020)], we show that the considered gates provide an extremely high level of fidelity of single-qudit transformations. We also compare quantum gates{\textquoteright} properties for systems of different dimensions and find the optimal conditions for carrying out transformations in the protocol under consideration.",

keywords = "quant-ph",

author = "Vashukevich, {E. A.} and Golubeva, {T. Yu} and Golubev, {Yu M.}",

year = "2021",

month = may,

day = "25",

language = "English",

type = "WorkingPaper",

}

RIS

TY - UNPB

T1 - High-fidelity quantum gates for OAM qudits on quantum memory

AU - Vashukevich, E. A.

AU - Golubeva, T. Yu

AU - Golubev, Yu M.

PY - 2021/5/25

Y1 - 2021/5/25

N2 - The application of high-dimensional quantum systems (qudits) in quantum computing and communications seems to be a promising avenue due to the possibility of increasing the amount of information encoded in one physical carrier. In this work, we propose a method for implementing single-qudit gates for qudits based on light modes with orbital angular momentum. Method for logical qudits encoding, which ensures the quasi-cyclicity of operations, is introduced. Based on the protocol for converting the orbital angular momentum of light in the Raman quantum memory scheme [Vashukevich E.A. et. al. PRA, 101, 033830 (2020)], we show that the considered gates provide an extremely high level of fidelity of single-qudit transformations. We also compare quantum gates’ properties for systems of different dimensions and find the optimal conditions for carrying out transformations in the protocol under consideration.

AB - The application of high-dimensional quantum systems (qudits) in quantum computing and communications seems to be a promising avenue due to the possibility of increasing the amount of information encoded in one physical carrier. In this work, we propose a method for implementing single-qudit gates for qudits based on light modes with orbital angular momentum. Method for logical qudits encoding, which ensures the quasi-cyclicity of operations, is introduced. Based on the protocol for converting the orbital angular momentum of light in the Raman quantum memory scheme [Vashukevich E.A. et. al. PRA, 101, 033830 (2020)], we show that the considered gates provide an extremely high level of fidelity of single-qudit transformations. We also compare quantum gates’ properties for systems of different dimensions and find the optimal conditions for carrying out transformations in the protocol under consideration.

KW - quant-ph

M3 - Preprint

BT - High-fidelity quantum gates for OAM qudits on quantum memory

ER -

ID: 87938251