Publication Date
2020
Journal or Book Title
Symmetry
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.
DOI
https://doi.org/10.3390/sym12010174
Volume
12
Special Issue
Symmetry and Mesoscopic Physics
Issue
1
License
UMass Amherst Open Access Policy
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Mithun, Thudiyangal; Maluckov, Aleksandra; Kasamatsu, Kenichi; Malomed, Boris A.; and Khare, Avinash, "Modulational Instability, Inter-Component Asymmetry, and Formation of Quantum Droplets in One-Dimensional Binary Bose Gases" (2020). Symmetry. 1313.
https://doi.org/10.3390/sym12010174