Stationary and dynamical properties of one-dimensional quantum droplets

被引：26
|
作者：
Otajonov, Sherzod R. [1 ]
Tsoy, Eduard N. [1 ]
Abdullaev, Fatkhulla Kh. [1 ]
机构：
[1] Uzbek Acad Sci, Phys Tech Inst, Chingiz Aytmatov Str 2-B, Tashkent 100084, Uzbekistan
来源：
PHYSICS LETTERS A | 2019年 / 383卷 / 34期
关键词：
Quantum droplet; Soliton; Bose-Einstein condensate; Quantum fluctuations;
D O I：
10.1016/j.physleta.2019.125980
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：5
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