Single-artificial-atom lasing and its suppression by strong pumping

J. R. Johansson, S. Ashhab, A. M. Zagoskin, Franco Nori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We analyze single-atom lasing in a system composed of an artificial atom coupled to a cavity mode. The population inversion of the artificial atom is modeled as a reversed relaxation process that takes the atom from its ground state to its excited state. In this setup there is no lasing threshold below which lasing does not occur, but lasing can be suppressed if the 'relaxation' rate, i.e. the atom pumping rate, is larger than a certain threshold value. Using transition-rate equations, we derive analytic expressions for the lasing suppression condition and the photon-distribution of the cavity, both in the lasing and suppressed-lasing regimes.

Original languageEnglish
Title of host publicationProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages210-213
Number of pages4
ISBN (Print)981428212X, 9789814282123
Publication statusPublished - 1 Jan 2009
Event9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008 - Hatoyama, Saitama, Japan
Duration: 25 Aug 200828 Aug 2008

Publication series

NameProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008

Other

Other9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
CountryJapan
CityHatoyama, Saitama
Period25/8/0828/8/08

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Keywords

  • Artificial atom
  • Cavity
  • Lasing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Johansson, J. R., Ashhab, S., Zagoskin, A. M., & Nori, F. (2009). Single-artificial-atom lasing and its suppression by strong pumping. In Proceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008 (pp. 210-213). (Proceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008). World Scientific Publishing Co. Pte Ltd.