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Controlled quantum teleportation of an unknown single-qutrit state in noisy channels with memory |
| Shexiang Jiang(蒋社想), Bao Zhao(赵宝)†, and Xingzhu Liang(梁兴柱) |
| School of Computer Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China |
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Abstract This paper proposes a three-dimensional (3D) controlled quantum teleportation scheme for an unknown single-qutrit state. The scheme is first introduced in an ideal environment, and its detailed implementation is described via the transformation of the quantum system. Four types of 3D-Pauli-like noise corresponding to Weyl operators are created by Kraus operators:trit-flip, t-phase-flip, trit-phase-flip, and t-depolarizing. Then, this scheme is analyzed in terms of four types of noisy channel with memory. For each type of noise, the average fidelity is calculated as a function of memory and noise parameters, which is afterwards compared with classical fidelity. The results demonstrate that for trit-flip and t-depolarizing noises, memory will increase the average fidelity regardless of the noise parameter. However, for t-phase-flip and trit-phase-flip noises, memory may become ineffective in increasing the average fidelity above a certain noise threshold.
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Received: 03 January 2021
Revised: 05 February 2021
Accepted manuscript online: 01 March 2021
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PACS:
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03.67.Hk
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(Quantum communication)
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03.67.Pp
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(Quantum error correction and other methods for protection against decoherence)
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03.67.-a
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(Quantum information)
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| Fund: Project supported by the Natural Science Research Project of Colleges and Universities in Anhui Province, China (Grant No. KJ2020A0301) and the Science and Technology Project of Wuhu City in 2020 (Grant No. 2020yf48). |
Corresponding Authors:
Bao Zhao
E-mail: bzhao@aust.edu.cn
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Cite this article:
Shexiang Jiang(蒋社想), Bao Zhao(赵宝), and Xingzhu Liang(梁兴柱) Controlled quantum teleportation of an unknown single-qutrit state in noisy channels with memory 2021 Chin. Phys. B 30 060303
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