TY - JOUR
T1 - Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture
AU - Yang, Aowei
AU - Li, Guilong
AU - Jiang, Xunda
AU - Fan, Zhiwei
AU - Chen, Zhaopin
AU - Liu, Bin
AU - Li, Yongyao
N1 - Funding Information:
This research was funded by Natural Science Foundation of Guangdong province (2021A1515010214), NNSFC (China) (12274077, 11905032, 11874112, 11904051), Guang Dong Basic and Applied Basic Research Foundation (2021A1515111015); Key Research Projects of General Colleges in Guangdong Province (2019KZDXM001), Special Funds for the Cultivation of Guangdong College Students Scientific and Technological Innovation (pdjh2021b0529, pdjh2022a0538), Research Fund of Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology (2020B1212030010).
Data Availability Statement
Not applicable
PY - 2023/4/30
Y1 - 2023/4/30
N2 - We study two-dimensional (2D) isotropic quantum droplets (QDs) in dipolar binary Bose–Einstein condensates (BECs). The QDs are supported by the competition between the 2D form of the Lee-Huang-Yang (LHY) term and the isotropic dipole-dipole interactions (DDIs). Moreover, the DDIs in the 2D plane can be tuned to be either repulsive or attractive. Before that, QDs in dipolar BECs were often explored in three-dimensional (3D) systems, with competition between the attractive DDIs and the repulsive LHY term. Unlike the 3D system, the LHY term of the 2D binary system behaves in a logarithmic form, which can feature both attraction and repulsion. In this case, the QDs can be produced regardless of the interactions (attraction, repulsion, or zero) that the mean-field effect represents. In this paper, we model the aforementioned QDs via the 2D binary dipolar BECs with the competition between isotropic DDIs and the logarithmic LHY term. Their characteristic parameters (the peak density, (Formula presented.), chemical potential, (Formula presented.), and effective area, (Formula presented.)) using both numerical and theoretical methods are discussed. The centripetal collision and oblique collision between moving QDs are also studied.
AB - We study two-dimensional (2D) isotropic quantum droplets (QDs) in dipolar binary Bose–Einstein condensates (BECs). The QDs are supported by the competition between the 2D form of the Lee-Huang-Yang (LHY) term and the isotropic dipole-dipole interactions (DDIs). Moreover, the DDIs in the 2D plane can be tuned to be either repulsive or attractive. Before that, QDs in dipolar BECs were often explored in three-dimensional (3D) systems, with competition between the attractive DDIs and the repulsive LHY term. Unlike the 3D system, the LHY term of the 2D binary system behaves in a logarithmic form, which can feature both attraction and repulsion. In this case, the QDs can be produced regardless of the interactions (attraction, repulsion, or zero) that the mean-field effect represents. In this paper, we model the aforementioned QDs via the 2D binary dipolar BECs with the competition between isotropic DDIs and the logarithmic LHY term. Their characteristic parameters (the peak density, (Formula presented.), chemical potential, (Formula presented.), and effective area, (Formula presented.)) using both numerical and theoretical methods are discussed. The centripetal collision and oblique collision between moving QDs are also studied.
KW - dipolar binary Bose–Einstein condensates
KW - Lee-Huang-Yang term
KW - quantum droplets
UR - http://www.scopus.com/inward/record.url?scp=85153787544&partnerID=8YFLogxK
U2 - 10.3390/photonics10040405
DO - 10.3390/photonics10040405
M3 - Article
AN - SCOPUS:85153787544
SN - 2304-6702
VL - 10
JO - Photonics
JF - Photonics
IS - 4
M1 - 405
ER -