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복잡계 이론물리 연구단
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Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases

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Title
Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases
Author(s)
Thudiyangal Mithun; Aleksandra Maluckov; Kenichi Kasamatsu; Boris A. Malomed; Avinash Khare
Publication Date
2020-01
Journal
SYMMETRY-BASEL, v.12, no.1, pp.174 -
Publisher
MDPI
Abstract
Quantum droplets are ultradilute liquid states that emerge from the competitive interplay of two Hamiltonian terms, the mean-field energy and beyond-mean-field correction, in a weakly interacting binary Bose gas. We relate the formation of droplets in symmetric and asymmetric two-component one-dimensional boson systems to the modulational instability of a spatially uniform state driven by the beyond-mean-field term. Asymmetry between the components may be caused by their unequal populations or unequal intra-component interaction strengths. Stability of both symmetric and asymmetric droplets is investigated. Robustness of the symmetric solutions against symmetry-breaking perturbations is confirmed. c 2020 by the authors. Licensee MDPI, Basel, Switzerland.
URI
https://pr.ibs.re.kr/handle/8788114/7260
ISSN
2073-8994
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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