Controlled quantum teleportation of an unknown single-qutrit state in noisy channels with memory

• 作者: Shexiang Jiang Bao Zhao Xingzhu Liang
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: GENERAL
• 页码范围: 130-140
• 页数: 11页
• 语种: 英文
• DOI: 10.1088/1674-1056/abea95

摘要

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 transfor-mation 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.