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arXiv:0708.3686 · Physical Review A

Accuracy of a teleported trapped field state inside a single bimodal cavity

Iara P. de Queirós, Simone Souza, Wesley Bueno Cardoso, N. G. de Almeida

Published Sep 6, 2007• 17 citations
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Abstract

We propose a simplified scheme to teleport a superposition of coherent states from one mode to another of the same bimodal lossy cavity. Based on current experimental capabilities, we present a calculation of the fidelity that can be achieved, demonstrating accurate teleportation if the mean photon number of each mode is at most $1.5$. Our scheme applies as well for teleportation of coherent states from one mode of a cavity to another mode of a second cavity, when both cavities are embedded in a common reservoir.

DOI
10.1103/physreva.76.034101

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We propose a simplified scheme to teleport a superposition of coherent states from one mode to another of the same bimodal lossy cavity. Based on current experimental capabilities, we present a calculation of the fidelity that can be achieved, demonstrating accurate teleportation if the mean photon number of each mode is at most 1.51.51.5. Our scheme applies as well for teleportation of coherent states from one mode of a cavity to another mode of a second cavity, when both cavities are embedded in a common reservoir.
We present a calculation of the fidelity of a cavity-field state teleported by means of a scheme that requires only two high-QQQ cavities. Based on current experimental capabilities, we demonstrate the feasibility of our scheme if the mean photon number of the cavity field is on the order of unity, allowing a reasonably accurate teleportation.
We solve the problem of the temporal evolution of one of two modes embedded in the same dissipative environment and investigate the role of the losses after the preparation of a coherent state in only one of the two modes. Based on the current cavity QED technology, we present a calculation of the fidelity of a superposition of coherent states engineered in a bimodal high- Q cavity. Our calculation demonstrates that the engineered superposition retains coherence for large times when the mean photon number of the prepared mode is of the order of unity.
We solve the problem of the temporal evolution of one of two-modes embedded in a same dissipative environment and investigate the role of the losses after the preparation of a coherent state in only one of the two modes. Based on current cavity QED technology, we present a calculation of the fidelity of a superposition of coherent states engineered in a bimodal high-Q cavity. Our calculation demonstrates that the engineered superposition retains coherence for large times when the mean photon number of the prepared mode is on the order of unity.