Resonance Fluorescence of a Single Artificial Atom

By O. Astafiev, A. Zagoskin, A. A. Abdumalikov, Y. Pashkin, Tsuyoshi Yamamoto, K. Inomata, Yasunobu Nakamura, J. Tsai. Science, 2010

608 citations recorded by the source corpus.

Superconducting Quantum Optics The coherence properties of superconducting circuits enable them to be developed as qubits in quantum information processing applications. Astafiev et al. (p. 840) now show that these macroscopic superconducting devices also behave as artificial atoms and can exhibit quantum optical effects. The ability to fabricate and integrate these superconducting devices in electronic circuitry may help toward developing a fully controlled quantum optics system on a chip. A superconducting circuit can exhibit quantum optical behavior, acting like an 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 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.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/2fb1c370eb3b867a6eb842173f49697e5f3276ad

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Citations in the corpus

Atomic physics and quantum optics using superconducting circuits (2011, background): “Recently, this phenomenon was observed in a superconducting flux qubit coupled to an open transmission line [75].”
Microwave photonics with superconducting quantum circuits (2017, methodology): “, superconducting cavities [117], transmission-line resonators [5], and waveguides [118].”
Giant acoustic atom: A single quantum system with a deterministic time delay (2016, background): “[48] for the study of a small artificial atom (recall that the total relaxation rate of our atom in this limit is 2γ).”
Colloquium: Strongly interacting photons in one-dimensional continuum (2016, background): “The NEC group demonstrated a number of prototypical atomic physics effects using their artificial atom including resonance fluorescence of the Mollow triplet (Astafiev et al., 2010a,b) and induced transparency due to the Autler-Townes splitting (Abdumalikov et al., 2010) as discussed before.”
Colloquium: Stimulating uncertainty: Amplifying the quantum vacuum with superconducting circuits (2011, background): “Although typical experiments involve cavity resonators, recently there has been growing interest in the use of open transmission lines (Astafiev et al., 2010a,b; Zhou et al., 2008), which allow for broadband frequency signals such as those generated by the Unruh, Hawking, and dynamical Casimir…”
Quantum simulation with interacting photons (2016, background): “Experimentally such scattering effects have been explored with Rydberg atoms [46, 115, 171, 218, 221] and one [12, 118] or two [247] superconducting qubits coupled to an open coplanar waveguide resonator.”
Subradiant states of quantum bits coupled to a one-dimensional waveguide (2018, background): “Such systems enable a number of exotic phenomena that are difficult to observe or have no obvious analogue in other settings, such as near-perfect reflection of light from a single resonant qubit [1, 2, 4, 12–14], or the dynamical Casimir effect [15], and allow for the measurement of quantum vacuum ”