Manifestation of relative phase in dynamics of two interacting Bose-Bose droplets

Pylak, Maciej; Gampel, Filip; Płodzień, Marcin; Gajda, Mariusz

doi:10.1103/physrevresearch.4.013168

Cited by 7 publications

(2 citation statements)

References 64 publications

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“…taking ψ 0 from equation (15). If condition (18) holds, the MI transforms the CW into one or several strongly localized azimuthal (quasi-1D) solitons, which may perform rotary motion in the circular potential trough [77,94,95].…”

Section: Analytical Results: Modulational (In)stability Of Narrow Vor...mentioning

confidence: 99%

Vortex-ring quantum droplets in a radially-periodic potential

et al. 2022

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We establish stability and characteristics of two-dimensional (2D) vortex ring-shaped quantum droplets (QDs) formed by binary Bose-Einstein condensates (BECs). The system is modeled by the Gross-Pitaevskii (GP) equation with the cubic term multiplied by a logarithmic factor (as produced by the Lee-Huang-Yang correction to the mean-field theory) and a potential which is a periodic function of the radial coordinate. Narrow vortex rings with high values of the topological charge, trapped in particular circular troughs of the radial potential, are produced. These results suggest an experimentally relevant method for the creation of vortical QDs (thus far, only zero-vorticity ones have been reported). The 2D GP equation for the narrow rings is approximately reduced to the 1D form, which makes it possible to study the modulational stability of the rings against azimuthal perturbations. Full stability areas are delineated for these modes. The trapping capacity of the circular troughs is identified for the vortex rings with different winding numbers (WNs). Stable compound states in the form of mutually nested concentric multiple rings are constructed too, including ones with opposite signs of the WNs. Other robust compound states combine a modulationally stable narrow ring in one circular potential trough and an azimuthal soliton performing orbital motion in an adjacent one. The results may be used to design a device employing coexisting ring-shaped modes with different WNs for data storage.

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Section: Analytical Results: Modulational (In)stability Of Narrow Vor...mentioning

confidence: 99%

Vortex-ring quantum droplets in a radially-periodic potential

et al. 2022

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“…There the AB drag can be, in relative terms, arbitrarily strong and ρ d can be also negative [45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. Interestingly, AB drag signatures have been found in quantum droplets collisions [61]. The drag effect can have various forms.…”

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confidence: 99%

Drag-induced dynamical formation of dark solitons in Bose mixture on a ring

Syrwid¹,

Blomquist²,

Babaev³

2022

Preprint

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Solitons occur in a wide array of fields ranging from tsunami waves and fiber-optic communication to biological systems. A rich research field recently emerged in binary ultracold atomic systems where nontrivial soliton dynamics occurs due to inter-component density-density interaction. In this work we show different kind of nontrivial soliton dynamics arising due to current-current coupling between components (Andreev-Bashkin drag), such as a drag-induced dark soliton generation.

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