Kink-like solitons in quantum droplet

被引：9
作者：
Shukla, Aradhya [1 ]
Neeraj [1 ]
Panigrahi, Prasanta K. [1 ]
机构：
[1] Indian Inst Sci Educ & Res Kolkata, Dept Phys Sci, Mohanpur 741246, W Bengal, India
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2021年 / 54卷 / 16期
关键词：
kink-like soliton; quantum droplet; mean field and beyond mean field coupling; NEGATIVE-MASS SOLITONS; INTERACTING BOSE-GAS; DARK; BRIGHT;
D O I：
10.1088/1361-6455/ac1692
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Solitonic excitations of the one-dimensional quantum droplets are obtained, which smoothly connect vacuum with the flat-top droplet, akin to compactons in classical liquids. These solitons are of the kink type, necessarily residing on a constant pedestal, determined by the mean-field (MF) repulsion and beyond mean field quantum correction and having exactly one-third of the uniform condensate amplitude. Akin to the kinks, the propagating modes occur in pairs and are phase-locked with the background. The lowest chemical potential and condensate amplitude at the flat-top boundary matches with the self-trapped quantum droplet. More general excitations of analogous kind are obtained through the Mobius transform, which connect the required solutions to elliptic functions in general.
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页数：7
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