Using Exchange Attenuation to Control Non-Disentanglement Quantum Information Transport in Phase Damping Channel

Abstract:

It is effective to constitute a hybrid qubit system by taking advantages of different types of qubits to overcome the effects of decoherence and achieve quantum information transport. We find that energy relaxation exists in the process of information exchange bewteen the hybrid qubits. Combining this kind of energy relaxation with the decoherence effects from external environment, quantum information transport of non-disentangled effect can be achieved in phase damping channel if the exchange decay rate and decoherence time satisfy certain constraint relations.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 1666-1669
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.1666
• Online since: September 2013
• Authors: Ju Ju Hu, Qiang Ke, Hai Jiang Hu, Ying Hua Ji
• Keywords: Energy Relaxation, Hybrid Qubit, Non-Disentanglement

References

[1] L. Jiang, C. L. Kane and J. Preskill: Phys. Rev. Lett. 106(2011) 130504.

[2] P. Rabl, D. DeMille, J. M. Doyle, M. D. Lukin, R. J. Schoelkopf and P. Zoller: Phys. Rev. Lett. 97 (2006) 033003.

DOI: 10.1103/physrevlett.97.033003

[3] Y. Matsuzaki and H. Nakano: Phys. Rev. B 86(2012) 184501.

[4] G. Lindblad: Commun. Math. Phy. 48(1976) 119.

[5] D. Sumanta and G. S. Agarwal: Journal of Physics B: Atomic, Molecular and Optical Physics, 42(2009) 205502.

[6] W. K. Wootters: Phys. Rev. Lett. 80(1998) 2245.

[7] Y. H. Ji, L. Xu: Chin. Phys. B 19(2010) 110305.

[8] M. Steffen, F. Brito, D. DiVincenzo, S. Kumar and M. Ketchen: New Journal of Physics 11 (2009) 033030.

DOI: 10.1088/1367-2630/11/3/033030