Solitary waves in a quantum droplet-bearing system
| Autor: | Katsimiga, G. C., Mistakidis, S. I., Koutsokostas, G. N., Frantzeskakis, D. J., Carretero-Gonzalez, R., Kevrekidis, P. G. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 107, 063308 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.107.063308 |
| Popis: | We unravel the existence and stability properties of dark soliton solutions as they extend from the regime of trapped quantum droplets towards the Thomas-Fermi limit in homonuclear symmetric Bose mixtures. Leveraging a phase-plane analysis, we identify the regimes of existence of different types of quantum droplets and subsequently examine the possibility of black and gray solitons and kink-type structures in this system. Moreover, we employ the Landau dynamics approach to extract an analytical estimate of the oscillation frequency of a single dark soliton in the relevant extended Gross-Pitaevskii model. Within this framework, we also find that the single soliton immersed in a droplet is stable, while multisoliton configurations exhibit parametric windows of oscillatory instabilities. Our results pave the way for studying dynamical features of nonlinear multisoliton excitations in a droplet environment in contemporary experimental settings. Comment: 16 pages, 9 figures, fixed some typos |
| Databáze: | arXiv |
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