Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture

Aowei Yang; Guilong Li; Xunda Jiang; Zhiwei Fan; Zhaopin Chen; Bin Liu; Yongyao Li

doi:10.3390/photonics10040405

Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture

Aowei Yang, Guilong Li, Xunda Jiang, Zhiwei Fan, Zhaopin Chen, Bin Liu, Yongyao Li

Centre for Photonics and Photonic Materials

Research output: Contribution to journal › Article › peer-review

3 Citations (SciVal)

Abstract

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.

Original language	English
Article number	405
Journal	Photonics
Volume	10
Issue number	4
Early online date	4 Apr 2023
DOIs	https://doi.org/10.3390/photonics10040405
Publication status	Published - 30 Apr 2023

Bibliographical note

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

Funding

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).

Keywords

dipolar binary Bose–Einstein condensates
Lee-Huang-Yang term
quantum droplets

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging

Access to Document

10.3390/photonics10040405Licence: CC BY

Cite this

@article{00c0d0fbfbbf4ae087fd6bfd9582c15d,

title = "Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture",

abstract = "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.",

keywords = "dipolar binary Bose–Einstein condensates, Lee-Huang-Yang term, quantum droplets",

author = "Aowei Yang and Guilong Li and Xunda Jiang and Zhiwei Fan and Zhaopin Chen and Bin Liu and Yongyao Li",

note = "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",

year = "2023",

month = apr,

day = "30",

doi = "10.3390/photonics10040405",

language = "English",

volume = "10",

journal = "Photonics",

issn = "2304-6702",

publisher = "MDPI",

number = "4",

}

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 -

Two-Dimensional Quantum Droplets in Binary Dipolar Bose-Bose Mixture

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this