State vector approximations for the resonant two-photon Jaynes-Cummings model

E K Tan, J Jeffers, S M Barnett

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We report improved approximate state vectors for the resonant two-photon Jaynes-Cummings model. The results show that conventional practice of approximating the state vector via a Taylor series expansion up to the second-order term can be dramatically improved by the addition of a third-order term. Our new approximation is no more difficult to use than the conventional one.

Original languageEnglish
Pages (from-to)2057-2065
Number of pages9
JournalJournal of Modern Optics
Issue number13
Publication statusPublished - 10 Sep 2003


  • coherent states
  • atoms
  • quantum physics
  • photons
  • light
  • micromaser

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