Multiphoton Localization and Propagating Quantum Gap Solitons in a Frequency Gap Medium
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.
Physical Review Letters
- Pub Date:
- August 1997
- Quantum Physics;
- Condensed Matter
- 8 pages, RevTEX, to appear in Phys. Rev. Lett