Controlled teleportation of an arbitrary two-qubit entanglement in noises environment
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We present a scheme for implementing tripartite controlled teleportation of an arbitrary two-qubit entanglement state with the genuine pentaqubit entangled state and generate the quantum channel and then demonstrated the feasibility of probabilistic controlled teleportation in cavity QED. We also used fidelity and concurrence to quantify the efficiency of the protocol in noisy environment. Several noise scenarios are investigated in which the bit of the controller and the receiver are subjected to the same or different types of noise. The result has shown that in some specially noise scenario, lower fidelity means higher entanglement for output state and it also exhibits more noise which leads to more efficiency for entanglement.
KeywordsControl teleportation Noises environment Fidelity Entanglement
This work was supported by the National Key Basic Research Special Foundation (Grant No. 2016YFA0302800); the Shanghai Science and Technology Committee (Grants No. 18JC1410900); the National Nature Science Foundation (Grant Nos. 11774262); the Natural Science Foundation of Anhui Province (Grant No. 1608085QA23).