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DOE OSTI · 22072228

Continuous-variable quantum teleportation in bosonic structured environments

Guangqiang, He·Jingtao, Zhang·Jun, Zhu·Guihua, Zeng
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Abstract

The effects of dynamics of continuous-variable entanglement under the various kinds of environments on quantum teleportation are quantitatively investigated. Only under assumption of the weak system-reservoir interaction, the evolution of teleportation fidelity is analytically derived and is numerically plotted in terms of environment parameters including reservoir temperature and its spectral density, without Markovian and rotating wave approximations. We find that the fidelity of teleportation is a monotonically decreasing function for Markovian interaction in Ohmic-like environments, while it oscillates for non-Markovian ones. According to the dynamical laws of teleportation, teleportation with better performances can be implemented by selecting the appropriate time.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS74 ATOMIC AND MOLECULAR PHYSICSAPPROXIMATIONSINTERACTIONSMARKOV PROCESSQUANTUM ENTANGLEMENTQUANTUM TELEPORTATIONRESERVOIR TEMPERATURESPECTRAL DENSITY

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Guangqiang, He, Jingtao, Zhang, Jun, Zhu, Guihua, Zeng. 2011-09-15. Continuous-variable quantum teleportation in bosonic structured environments. https://doi.org/10.1103/physreva.84.034305

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