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arXiv · 1603.09214

Superradiance of non-Dicke states

N. E. Nefedkin·E. S. Andrianov·A. A. Zyablovsky·A. A. Pukhov·A. P. Vinogradov·A. A. Lisyansky
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Abstract

In 1954, Dicke predicted that a system of quantum emitters confined to a subwavelength volume would produce a superradiant burst. For such a burst to occur, the emitters must be in the special Dicke state with zero dipole moment. We show that a superradiant burst may also arise for non-Dicke initial states with nonzero dipole moment. Both for Dicke and non-Dicke initial states, superradiance arises due to a decrease in the dispersion of the quantum phase of the emitter state. For non-Dicke states, the quantum phase is related to the phase of long-period envelopes which modulate the oscillations of the dipole moments. A decrease in dispersion of the quantum phase causes a decrease in the dispersion of envelope phases that results in constructive interference of the envelopes and the superradiant burst.

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N. E. Nefedkin, E. S. Andrianov, A. A. Zyablovsky, A. A. Pukhov, A. P. Vinogradov, A. A. Lisyansky. 2016-12-03. Superradiance of non-Dicke states. https://doi.org/10.1364/oe.25.002790

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