Dynamics of one-dimensional quantum droplets
By G. Astrakharchik, Boris A. Malomed. Physical Review A, 2018
189 citations recorded by the source corpus.
The structure and dynamics of one-dimensional binary Bose gases forming quantum droplets is studied by solving the corresponding amended Gross-Pitaevskii equation. Two physically different regimes are identified, corresponding to small droplets of an approximately Gaussian shape and large “puddles” with a broad flat-top plateau. Small droplets collide quasielastically, featuring the solitonlike behavior. On the other hand, large colliding droplets may merge or suffer fragmentation, depending on their relative velocity. The frequency of a breathing excited state of droplets, as predicted by the dynamical variational approximation based on the Gaussian ansatz, is found to be in good agreement with numerical results. Finally, the stability diagram for a single droplet with respect to shape excitations with a given wave number is drawn, being consistent with preservation of the Weber number for large droplets.
Subfields: Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/7f7c4893bbc59bf75ab16db854e4e8f0cc774a2c
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In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Two-dimensional vortex quantum droplets (2018, background): “This feature is demonstrated by the soli-tons in one [61,63–65], two [7,8], and three [56] dimensions alike.”
- A new form of liquid matter: Quantum droplets (2020, background): “Because the most interesting results for QDs are obtained in the case of the competition between the residual MF term and its LHY-induced correction [44], in the 1D case the relevant situation is one with δg > 0, when the residual MF self-interaction is repulsive, in contrast with the residual self-”