Hyperradiance from collective behavior of coherently driven atoms

Pleinert MO, von Zanthier J, Agarwal GS (2017)


Publication Status: Published

Publication Type: Journal article

Publication year: 2017

Journal

Publisher: OPTICAL SOC AMER

Book Volume: 4

Pages Range: 779-785

Journal Issue: 7

DOI: 10.1364/OPTICA.4.000779

Abstract

The collective behavior of ensembles of atoms has been studied in-depth since the seminal paper of Dicke [Phys. Rev. 93, 99 (1954)], where he demonstrated that a group of emitters in collective states is able to radiate with increased intensity and modified decay rates in particular directions, a phenomenon that he called superradiance. Here, we show that the fundamental setup of two atoms coupled to a single-mode cavity can distinctly exceed the free-space super-radiant behavior, a phenomenon we call hyperradiance. The effect is accompanied by strong quantum fluctuations and surprisingly arises for atoms radiating out-of-phase, an alleged non-ideal condition where one expects subradiance. We are able to explain the onset of hyperradiance in a transparent way by a photon cascade taking place among manifolds of Dicke states with different photon numbers under particular out-of-phase coupling conditions. These theoretical results can be realized with current technology and should thus stimulate future experiments. (C) 2017 Optical Society of America

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APA:

Pleinert, M.-O., von Zanthier, J., & Agarwal, G.S. (2017). Hyperradiance from collective behavior of coherently driven atoms. Optica, 4(7), 779-785. https://doi.org/10.1364/OPTICA.4.000779

MLA:

Pleinert, Marc-Oliver, Joachim von Zanthier, and Girish S. Agarwal. "Hyperradiance from collective behavior of coherently driven atoms." Optica 4.7 (2017): 779-785.

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