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- Title
Cyclic teleportation in noisy channel with nondemolition parity analysis and weak measurement.
- Authors
Peng, Jia-Yin; Tang, Liang; Yang, Zhen; Wu, Fan; Mo, Zhi-Wen; Bai, Ming-Qiang
- Abstract
We first put forward a scheme to teleport circularly arbitrary single-qubit states in a noise quantum channel. In our scheme, each sender preforms local nondemolition parity analysis based on cross-Kerr nonlinearities and publicizes the achieved outcome; the nearby receiver executes appropriate Pauli operation on his/her own qubit to obtain the original state. Due to the implementation of nondemolition parity analysis rather than Bell state measurement, the resource of Bell state can be achieved and applied to other potential tasks of quantum information processing. Further, we discuss the influence of quantum noise by the example of an amplitude damping channel and obtain the fidelity of the cyclic teleportation. Finally, we use the weak measurement and the corresponding reversing measurement to protect the quantum entanglement, which shows an effective enhancement of the cyclic teleportation fidelity.
- Subjects
QUBITS; TELEPORTATION; QUANTUM noise; QUANTUM entanglement; QUANTUM information science; QUANTUM measurement
- Publication
Quantum Information Processing, 2022, Vol 21, Issue 3, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-022-03461-5