We present a scheme that Quantum decoherence problem in quantum teleportation process in two three-level system. Evolution of entanglement of two V-type three-level atom system with time were studied under the vacuum radiation field. When the distance between two atoms is far, that is, the two atoms are independent of each other, at this time, under the action of the vacuum radiation field, the atomic entanglement will suddenly die after a period of time; When the distance between two atoms is very small, the co-operative effect induced by the vacuum radiation field between atoms may appear entangled and suddenly recover after death. We then design the related parameter of entanglement death and entanglement, in order to find out the cause of the entanglement death in order to address them, thereby improving the quality of quantum communication.
Entangled death Quantum evolution Two three-level system Quantum entanglement
This is a preview of subscription content, log in to check access
This work is supported by Fundamental Research Funds for the Central Universities (ZYGX2014J051).
Wootters, W.K.: Entanglement of formation of an arbitrary state of two qubits[J]. Phys. Rev. Lett. 80(10), 1998 (2245)Google Scholar
Weinstein, Y.S.: Tripartite entanglement witnesses and entanglement sudden death[J]. Phys. Rev. A 79(1), 012318 (2009)ADSCrossRefGoogle Scholar
Abbott, B.P., Abbott, R., Adhikari, R., et al.: Search for gravitational waves from low mass compact binary coalescence in 186 days of LIGOs fifth science run[J]. Phys. Rev. D 80(4), 047101 (2009)ADSCrossRefGoogle Scholar
Guo, L., Liang, X.T.: Entanglement evolution of field-atom and atom-atom in Tavis-Cummings model[J]. 65(8), 094211 (2009)Google Scholar
Cheng, Q.L., Xie, S.Y., Yang, Y.P.: The influence of the field frequency modulation on quantum entanglement via two-photon process[J]. 29(9), 094252 (1996)Google Scholar
Xiang-Ping, L., Jian-Shu, F., Mao-Fa, F.: Sudden death and revival of entanglement of two qubits coupled collectively to a thermal reservoir[J]. Chin. Phys. B 19(9), 094203 (2010)ADSCrossRefGoogle Scholar