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Unless protected by the exact integrability, solitons are subject to dissipative forces, originating from a thermally fluctuating background. At low enough temperatures T background fluctuations should be considered as being quantized which enables us to calculate finite lifetime of the solitons tau similar to T-4. We also find that the coherent nature of the quantum fluctuations leads to long-range interactions between the solitons mediated by the superradiation. Our results are of relevance to current experiments with ultracold atoms, while the approach may be extended to solitons in other media.
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- 3 Finished
1/10/04 → 31/01/08
Project: Research Councils