Resonance Fluorescence of a Single Artificial Atom

Details Resonance Fluorescence of a Single Artificial Atom Resonance Fluorescence of a Single Artificial Atom

2010-02-26

arxiv.org/abs/1002.4944v1

Science 327, 840-843 (2010)

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

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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