Stability limit of the cryogenic hydrogen maser

A.C. Maan, H.T.C. Stoof, B.J. Verhaar, P. Mandel

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    It is pointed out that the usual oscillation condition of the H maser is only a necessary condition for steady operation. Reducing the coupled field-matter dynamics to the complex Lorenz equations we derive a second requirement which together with the first forms a set of necessary and sufficient conditions for the steady operation to be stable. The instability of the steady state predicted by the equations should be easily accessible experimentally for the cryogenic H maser. It will be characterized by a pulsed output power which, depending on the detuning, is either periodic or chaotic.
    Original languageEnglish
    Pages (from-to)2630-2632
    Number of pages3
    JournalPhysical Review Letters
    Issue number22
    Publication statusPublished - 1990


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