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arXiv · 1304.6221

Photon transfer in ultrastrongly coupled three-cavity arrays

S. Felicetti·G. Romero·D. Rossini·R. Fazio·E. Solano
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Abstract

We study the photon transfer along a linear array of three coupled cavities where the central one contains an interacting two-level system in the strong and ultrastrong coupling regimes. We find that an inhomogeneously coupled array forbids a complete single-photon transfer between the external cavities when the central one performs a Jaynes-Cummings dynamics. This is not the case in the ultrastrong coupling regime, where the system exhibits singularities in the photon transfer time as a function of the cavity-qubit coupling strength. Our model can be implemented within the state-of-the-art circuit quantum electrodynamics technology and it represents a building block for studying photon state transfer through scalable cavity arrays.

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S. Felicetti, G. Romero, D. Rossini, R. Fazio, E. Solano. 2013-04-23. Photon transfer in ultrastrongly coupled three-cavity arrays. https://doi.org/10.1103/physreva.89.013853

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