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Multiphoton localization and propagating quantum gap solitons in a frequency gap medium

Sajeev John·Valery I. Rupasov
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Abstract

The many-particle spectrum of an isotropic frequency gap medium doped with impurity resonance atoms is studied using the Bethe ansatz technique. The spectrum is shown to contain pairs of quantum correlated ``gap excitations'' and their heavy bound complexes (``gap solitons''), enabling the propagation of quantum information within the classically forbidden gap. In addition, multiparticle localization of the radiation and the medium polarization occurs when such a gap soliton is pinned to the impurity atom.

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Sajeev John, Valery I. Rupasov. 1997-06-26. Multiphoton localization and propagating quantum gap solitons in a frequency gap medium. https://doi.org/10.1103/physrevlett.79.821

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