Quantum Teleportation Under Noise

Li-Nan Jiang

Li-Nan Jiang

Ri‐Gui Zhou, Xiao-Xue Zhang, Lin-Tao Du

Zhang Zhaolei, Ma Zhiqiang, Lei Shi

Abstract Quantum teleportation is an important reaseach direction of quantum communication. Quantum meaurement is one of necessary physical implementation for quantum teleportation. Thus, this paper explored the influence of measurement noise on quantum teleportation. The realization steps of quantum teleportation with measurement noise are presented. From the density operation and fidelity value, the performance of quantum teleportation is analyzed. The research results about measurement noise might be utilized for quantum communication.

Zijian Xu, Jun‐Hong An

Permitting the transmission of unknown quantum states over long distances by using entanglement, quantum teleportation serves as an important building block for many quantum technologies. However, in the noisy intermediate-scale quantum era, the practical realization of quantum teleportation is inevitably challenged by the noise-induced decoherence. We here propose a noise-mitigation mechanism applicable in both the discrete- and continuous-variable quantum teleportation schemes. Via investigating the non-Markovian decoherence dynamics of the two types of quantum teleportation schemes, we find that, as long as a bound state is formed in the energy spectrum of the total system consisting of the involved subsystems and their respective reservoirs, the quantum superiority of the fidelity is persistently recovered. Supplying an insightful understanding of the noise-mitigation protocols, our result paves the way to the practical realization of noise-tolerant quantum teleportation.

Seyed Mohammad Hosseiny, Jamileh Seyed‐Yazdi, Milad Norouzi

Quantum teleportation allows the transmission of unknown quantum states over arbitrary distances. This paper studies quantum teleportation via two non-interacting qubits coupled to local fields and Ornstein Uhlenbeck noise. We consider two different qubit-noise configurations, i.e., common qubit-noise interactions and independent qubit-noise interactions. We introduce a Gaussian Ornstein Uhlenbeck process to take into account the noisy effects of the local external fields. Furthermore, we address the intrinsic behavior of classical fields toward single- and two-qubit quantum teleportation as a function of various parameters. Additionally, using a quantum estimation theory, we study single- and multi-parameter estimation of the teleported state output for single and two-qubit quantum teleportation scenarios. One important application of this work is obtaining more valuable information in quantum remote sensing.