Quantum trajectory studies of many-atom and finite transit-time effects in a cavity QED microlaser or micromaser

C. Fang-Yen

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Studies of microlasers and micromasers generally assume that at most one atom is present in the resonator and transit times are much shorter than cavity lifetimes. We use quantum trajectory simulations to investigate the behavior of a microlaser/micromaser in which multiple atoms may be present and atom transit times can be comparable to the cavity decay time. Many-atom events are shown to destroy trap state resonances even for a mean intracavity atom number as small as 0.1. Away from trap states, results for mean photon number agree with a single-atom, weak-decay theory. However the variance of the photon number distribution increases relative to micromaser theory by an amount proportional to the product of the interaction time and cavity decay rate. This excess variance is interpreted as resulting from cavity decay during the atomic transit time.

    Original languageEnglish
    Pages (from-to)224-228
    Number of pages5
    JournalOptics Communications
    Volume262
    Issue number2
    DOIs
    Publication statusPublished - 2006 Jun 15

    Bibliographical note

    Funding Information:
    The author thanks Michael S. Feld, Kyungwon An, and Chung-Chieh Yu for many helpful discussions. This work was supported by National Science Foundation grants 9876974-PHY and 0111370-CHE.

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

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