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Open Quantum Systems Decoherence Superconducting Qubits

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

arXiv
Authors: N. Didier, Ya. M. Blanter, F. W. J. Hekking

Year

2010

Paper ID

8992

Status

Preprint

Abstract Read

~2 min

Abstract Words

124

Citations

N/A

Abstract

Recently, a lasing effect has been observed in a superconducting nano-circuit where a Cooper pair box, acting as an artificial three-level atom, was coupled to a resonator. 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.

Why This Paper Matters

  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2010 reference point for readers tracking recent quantum research.
  • Recently, a lasing effect has been observed in a superconducting nano-circuit where a Cooper pair box, acting as an artificial three-level atom, was coupled to a resonator.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1004.1630 [2] arXiv https://arxiv.org/abs/1004.1630 [3] Publisher https://arxiv.org/abs/1004.1630

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