Effect of Quantum Noise on Teleportation of an Arbitrary Single-Qubit State via a Triparticle W State

• Published in: International journal of theoretical physics Vol. 59; no. 4; pp. 1081 - 1098
• Main Authors: He, Liang-Ming, Wang, Nong, Zhou, Ping
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.04.2020; Springer Nature B.V
• Subjects: Accuracy; Elementary Particles; Mathematical and Computational Physics; Physics; Physics and Astronomy; Quantum entanglement; Quantum Field Theory; Quantum Physics; Quantum teleportation; Qubits (quantum computing); Rotation; Theoretical; Fidelity; Quantum noise; Quantum teleportation; W state
• ISSN: 0020-7748; 1572-9575
• DOI: 10.1007/s10773-020-04390-8

Using a three-particle W state as the quantum channel, we investigate the teleportation of an arbitrary single-qubit state in noisy environments. The influence of different noises on the process of teleporation of an arbitrary single-qubit state with a three-particle W state is considered by analytically derivation and calculations of the fidelities of the teleportation. The single-qubit teleportation fidelity was derived and computed numberically in the case of teleportation through a triparticle W state in which the sender’s entangled qubit is interacted to environment during the process of entanglement distribution and the receiver’s entangled particle is rotated to optimize the teleportation fidelity. It is shown that the fidelity of single-qubit teleportation through a strong bit flipping or bit-phase flipping environment can be enhanced by rotating the entangled particle about x-axis or y-axis. While such effect does not appear in quantum teleportation when rotating an entangled particle of Bell state under a strong bit-phase flipping environment.