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arXiv · 1809.04874

Probing the statistics of coherent states by continuous wave mixing on a single artificial atom

A. Yu. Dmitriev·R. Shaikhaidarov·T. Hönigl-Decrinis·S. E. De Graaf·V. N. Antonov·O. V. Astafiev
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Abstract

We study four- and higher-order wave mixing of continuous coherent waves on a single superconducting artificial atom. Narrow side peaks of different orders of nonlinearity resulting from elastic multi-photon scattering on the atom are observed and investigated. We derive an analytical expression for the peak amplitudes and show that the ratio of any two adjacent peaks is a function of driving amplitudes and detuning. This is attributed to the photon distribution in the coherent states and provides a measure for characterisation of photon statistics in non-classical coherent waves. We also demonstrate an Autler-Townes-like splitting of side peaks, the magnitude of which scales with the scattering order.

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A. Yu. Dmitriev, R. Shaikhaidarov, T. Hönigl-Decrinis, S. E. De Graaf, V. N. Antonov, O. V. Astafiev. 2018-09-13. Probing the statistics of coherent states by continuous wave mixing on a single artificial atom. https://doi.org/10.1103/physreva.100.013808

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