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C. Henkel
Micromaser line broadening without photon exchange
Eur. Phys. J. Spec. Top. 160 (2008) 217-24, proceedings of Central European Workshop on Quantum Optics (Palermo Jun 07).


    We perform a calculation of the linewidth of a micromaser, using the master equation and the quantum regression approach. A `dephasing' contribution is identified from pumping processes that conserve the photon number and do not appear in the photon statistics. We work out examples for a single-atom maser with a precisely controlled coupling and for a laser where the interaction time is broadly distributed. In the latter case, we also assess the convergence of a recently developed uniform Lindblad approximation to the master equation; it is relatively slow.

[ 0710.2121v1 ]

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