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Lookup NU author(s): Dr Luca Parisi,
Professor Nick ParkerORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
We propose and benchmark a Gross-Pitaevskii-like equation for two-component Bose mixtures with competing interactions in 1D. Our approach follows the density functional theory with the energy functional based on the exact quantum Monte Carlo (QMC) simulations. Our model covers, but goes beyond, the popular approach with the Lee-Huang-Yang corrections. We first benchmark our approach against available QMC data in all interaction regimes and then study dynamical properties, inaccessible by ab initio many-body simulations. Our analysis includes a study of monopole modes and reveals the presence of anomalous dark solitons.
Author(s): Kopycinski J, Parisi L, Parker NG, Pawlowski K
Publication type: Article
Publication status: Published
Journal: Physical Review Research
Print publication date: 24/04/2023
Online publication date: 24/04/2023
Acceptance date: 07/04/2023
Date deposited: 24/04/2023
ISSN (electronic): 2643-1564
Publisher: American Physical Society
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