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Quantum droplets of quasi-one-dimensional dipolar Bose–Einstein condensates

Lookup NU author(s): Dr Matthew Edmonds, Dr Tom Bland, Professor Nick ParkerORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

Ultracold dipolar droplets have been realized in a series of ground-breaking experiments, where the stability of the droplet state is attributed to beyond-mean-field effects in the form of the celebrated Lee-Huang-Yang (LHY) correction. We scrutinize the dipolar droplet states in a one-dimensional context using a combination of analytical and numerical approaches, and identify experimentally viable parameters for accessing our findings for future experiments. In particular we identify regimes of stability in the restricted geometry, finding multiple roton instabilities as well as regions supporting quasi-one-dimensional droplet states. By applying an interaction quench to the droplet, a modulational instability is induced and multiple droplets are produced, along with bright solitons and atomic radiation. We also assess the droplets robustness to collisions, revealing population transfer and droplet fission.

Publication metadata

Author(s): Edmonds M, Bland T, Parker N

Publication type: Article

Publication status: Published

Journal: Journal of Physics Communications

Year: 2020

Volume: 4

Online publication date: 16/12/2020

Acceptance date: 19/11/2020

Date deposited: 16/12/2020

ISSN (electronic): 2399-6528

Publisher: Institute of Physics

URL: https://doi.org/10.1088/2399-6528/abcc3b

DOI: 10.1088/2399-6528/abcc3b

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