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arXiv · 1002.4944

Resonance Fluorescence of a Single Artificial Atom

O. Astafiev·A. M. Zagoskin·A. A. Abdumalikov Jr.·Yu. A. Pashkin·T. Yamamoto·K. Inomata·Y. Nakamura·J. S. Tsai
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Abstract

An atom in open space can be detected by means of resonant absorption and reemission of electromagnetic waves, known as resonance fluorescence, which is a fundamental phenomenon of quantum optics. We report on the observation of scattering of propagating waves by a single artificial atom. The behavior of the artificial atom, a superconducting macroscopic two-level system, is in a quantitative agreement with the predictions of quantum optics for a pointlike scatterer interacting with the electromagnetic field in one-dimensional open space. The strong atom-field interaction as revealed in a high degree of extinction of propagating waves will allow applications of controllable artificial atoms in quantum optics and photonics.

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O. Astafiev, A. M. Zagoskin, A. A. Abdumalikov Jr., Yu. A. Pashkin, T. Yamamoto, K. Inomata, Y. Nakamura, J. S. Tsai. 2010-02-26. Resonance Fluorescence of a Single Artificial Atom. https://doi.org/10.1126/science.1181918

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