Enhance quantum teleportation under correlated amplitude damping decoherence by weak measurement and quantum measurement reversal
- 106 Downloads
A scheme which aims to protect the quantum teleportation from correlated amplitude damping decoherence is proposed. Comparing with the results of uncorrelated amplitude damping noise, we find that the correlated effects enable to improve the fidelity with the given decoherence parameter. Moreover, we show that the combination of weak measurement and quantum measurement reversal could drastically enhance the fidelity in both uncorrelated and correlated amplitude damping noise. Our results extend the ability of weak measurement as a technique in various quantum information processes which are affected by correlated noise.
KeywordsQuantum teleportation Weak measurement Correlated amplitude damping channel
This work is supported by the Funds of the National Natural Science Foundation of China under Grant No. 61765007. YL Li is supported by the Program of Qingjiang Excellent Young Talents, Jiangxi University of Science and Technology.
- 31.Arshed, N., Toor, A.H.: Entanglement-Assisted Capacities of Time-Correlated Amplitude-Damping Channel. arXiv:1307.5403 (2013)