Dark-Soliton Molecules in an Exciton-Polariton Superfluid

The general theory of dark solitons relies on repulsive interactions and, therefore, predicts the impossibility to form dark-soliton bound states. One important exception to this prediction is the observation of bound solitons in nonlocal nonlinear media. Here, we report that exciton-polariton super...

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Veröffentlicht in:Physical review. X 2020-11, Vol.10 (4), p.041028, Article 041028
Hauptverfasser: Maître, Anne, Lerario, Giovanni, Medeiros, Adrià, Claude, Ferdinand, Glorieux, Quentin, Giacobino, Elisabeth, Pigeon, Simon, Bramati, Alberto
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Sprache:eng
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Zusammenfassung:The general theory of dark solitons relies on repulsive interactions and, therefore, predicts the impossibility to form dark-soliton bound states. One important exception to this prediction is the observation of bound solitons in nonlocal nonlinear media. Here, we report that exciton-polariton superfluids can also sustain dark-soliton molecules, although the interactions are fully local. With a novel all-optical technique, we create two dark solitons that bind together to form an unconventional dark-soliton molecule. We demonstrate that the stability of this structure and the separation distance between two dark solitons is tightly connected to the driven-dissipative nature of the polariton fluid.
ISSN:2160-3308
2160-3308
DOI:10.1103/PhysRevX.10.041028