Quantum dynamics of a driven three-level Josephson-atom maser

Title

Quantum dynamics of a driven three-level Josephson-atom maser

 Author

Didier, N.
Blanter, Y.M.
Hekking, F.W.J.

Faculty

Applied Sciences

 Department

QN/Quantum Nanoscience

 Date

2010-12-08

 Abstract

Recently, a lasing effect has been observed in a superconducting nanocircuit where a Cooper-pair box, acting as an artificial three-level atom, was coupled to a resonator [O. Astafiev, K. Inomata, A. O. Niskanen, T. Yamamoto, Yu. A. Pashkin, Y. Nakamura, and J. S. Tsai, Nature (London) 449, 588 (2007)]. Motivated by this experiment, we analyze the quantum dynamics of a three-level atom coupled to a quantum-mechanical resonator in the presence of a driving on the cavity within the framework of the Lindblad master equation. As a result, we have access to the dynamics of the atomic level populations and the photon number in the cavity as well as to the output spectrum. The results of our quantum approach agree with the experimental findings. The presence of a fluctuator in the circuit is also analyzed. Finally, we compare our results with those obtained within a semiclassical approximation.

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 DOI

https://doi.org/10.1103/PhysRevB.82.214507

 Publisher

American Physical Society

 ISSN

1098-0121

 Source

Physical Review B, 82 (21), 2010

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

(c) 2010 The Author(s)
American Physical Society
Files
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