Open Access

ARTICLE

A Novel Method to against Quantum Noises in Quantum Teleportation

by Shengyao Wu, Wenjie Liu, Zhiguo Qu

1 School of Computer & Software, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
2 Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
3 Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.

* Corresponding Author: Zhiguo Qu. Email: .

Journal of Quantum Computing 2020, 2(1), 33-55. https://doi.org/10.32604/jqc.2019.08898

Received 23 October 2019; Accepted 30 November 2019; Issue published 28 May 2020

Abstract

In order to improve the anti-noise performance of quantum teleportation, this paper proposes a novel dynamic quantum anti-noise scheme based on the quantum teleportation which transmits single qubit state using Bell state. Considering that quantum noise only acts on the transmitted qubit, i.e., the entangled state that Alice and Bob share in advance is affected by the noise, thus affecting the final transmission result. In this paper, a method for dynamically adjusting the shared entangled state according to the noise environment is proposed. By calculating the maximum fidelity of the output state to determine the shared entangled state, which makes the quantum teleportation be affected by the noise as little as possible. This paper calculates the fidelity of teleportation under four kinds of channel noise (amplitude damping, phase damping, bit flip and depolarizing noise). The results show that the scheme has a suppression effect on phase damping, bit flip and depolarizing noise under certain conditions. When the noise intensity is larger, the optimized efficiency is better.

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Keywords

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