Resonance Fluorescence of a Single Artificial Atom

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 behavi...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2010-02, Vol.327 (5967), p.840-843
Main Authors: Astafiev, O, Zagoskin, A.M, Abdumalikov, A.A. Jr, Pashkin, Yu.A, Yamamoto, T, Inomata, K, Nakamura, Y, Tsai, J.S
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Atomic interactions
Atomic properties and interactions with photons
Atoms
Atoms & subatomic particles
Cooperative phenomena
superradiance and superfluorescence
Elastic scattering
Electromagnetic interactions
Electromagnetism
Exact sciences and technology
Fluorescence
Fluorescence, phosphorescence (including quenching)
Fundamental areas of phenomenology (including applications)
Microwaves
Optics
Physics
Quantum optics
Quantum physics
Resonance fluorescence
Resonance scattering
Transmission lines
Waves
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Summary: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1181918