Collective shifts and frequency chirping in a superradiant system

ORAL

Abstract

In quantum optics, the energy shift and the stimulated emission rate are Kramers-Kronig pairs. Therefore when a superradiant system is considered, the cooperatively enhanced decay rate results in collective shifts and hence frequency chirping during the decay process. This effect, including the so-called collective Lamb shift, is investigated under a framework of two-body effective description, where we take into account the actual contribution of dipole-dipole interaction and inter-particle coherence.

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Authors

  • Guin-Dar Lin

    ITAMP, Harvard-Smithsonian Center for Astrophysics and Harvard Physics Department

  • Susanne Yelin

    ITAMP, Harvard-Smithsonian Center for Astrophysics and Harvard Physics Department; Department of Physics, University of Connecticut, University of Connecticut