Journal
PHYSICS LETTERS A
Volume 383, Issue 34, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2019.125980
Keywords
Quantum droplet; Soliton; Bose-Einstein condensate; Quantum fluctuations
Categories
Funding
- Ministry of Innovative Development of the Republic of Uzbekistan [FA-F2-004]
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The dynamics of quantum droplets in 1D is analyzed on the basis of the variational approach (VA). It is shown that the VA based on the super-Gaussian function gives a good approximation of stationary states. The period of small oscillations of the perturbed droplet is obtained. It is found numerically that oscillations are almost undamped for many periods. Based on the VA, an existence of stable localized states for different combinations of signs of nonlinearities is demonstrated. (C) 2019 Elsevier B.V. All rights reserved.
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