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Dark state localization of quantum emitters in a cavity
Thomas Botzung, David Hagenmüller, Stefan Schütz, Jérôme Dubail, Guido Pupillo, Johannes Schachenmayer
Résumé : We study a disordered ensemble of quantum emitters collectively coupled to a lossless cavity mode. The latter is found to modify the localization properties of the "dark" eigenstates, which exhibit a novel character of being localized on multiple, non-contiguous sites. We denote such states as semi-localized and characterize them by means of standard localization measures. We show that those states can very efficiently contribute to coherent energy transport. Our work underlines the important role of dark states in systems with strong light-matter coupling.