Breathing and Fission of Magnetic Multi-Solitons
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914381035470848 |
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| author | Brochier, G. Li, Y. Wattellier, S. Philips, S. Rabec, F. Nascimbene, S. Dalibard, J. Beugnon, J. |
| author_facet | Brochier, G. Li, Y. Wattellier, S. Philips, S. Rabec, F. Nascimbene, S. Dalibard, J. Beugnon, J. |
| contents | We report the deterministic experimental realization and controlled fission of magnetic multi-soliton states in a uniform quasi-one-dimensional immiscible two-component Bose gas. We explore the Manakov regime, where the spin dynamics is well described by the easy-axis Landau-Lifshitz equation (LLE). The gauge equivalence between the easy-axis LLE and the attractive nonlinear Schrödinger equation (NLSE) enables the direct construction of magnetic multi-solitons from the well-known NLSE solutions. We observe the two- and three- soliton states, which exhibit robust breathing in quantitative agreement with integrable theory. By introducing a weak, localized perturbation, we controllably break integrability and induce the splitting of a two-soliton into its fundamental constituents. This process reveals the composite structure of multi-soliton states and realizes an experimental analog of the inverse scattering transform. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_09357 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Breathing and Fission of Magnetic Multi-Solitons Brochier, G. Li, Y. Wattellier, S. Philips, S. Rabec, F. Nascimbene, S. Dalibard, J. Beugnon, J. Quantum Gases Pattern Formation and Solitons We report the deterministic experimental realization and controlled fission of magnetic multi-soliton states in a uniform quasi-one-dimensional immiscible two-component Bose gas. We explore the Manakov regime, where the spin dynamics is well described by the easy-axis Landau-Lifshitz equation (LLE). The gauge equivalence between the easy-axis LLE and the attractive nonlinear Schrödinger equation (NLSE) enables the direct construction of magnetic multi-solitons from the well-known NLSE solutions. We observe the two- and three- soliton states, which exhibit robust breathing in quantitative agreement with integrable theory. By introducing a weak, localized perturbation, we controllably break integrability and induce the splitting of a two-soliton into its fundamental constituents. This process reveals the composite structure of multi-soliton states and realizes an experimental analog of the inverse scattering transform. |
| title | Breathing and Fission of Magnetic Multi-Solitons |
| topic | Quantum Gases Pattern Formation and Solitons |
| url | https://arxiv.org/abs/2603.09357 |