Bosonic quantum Hall droplets in rapidly rotating two-dimensional Bose-Einstein condensates

Fuente: arXiv
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Main Authors: Cao, Zhen, Li, Siying, Li, Zhendong, Liu, Xinyi, Wu, Zhigang, Sun, Mingyuan
Format: Preprint
Published: 2025
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author Cao, Zhen
Li, Siying
Li, Zhendong
Liu, Xinyi
Wu, Zhigang
Sun, Mingyuan
author_facet Cao, Zhen
Li, Siying
Li, Zhendong
Liu, Xinyi
Wu, Zhigang
Sun, Mingyuan
contents Recent experiments demonstrate that rapidly rotating Bose-Einstein condensates (BECs) near the lowest Landau level can self-organize into interaction-driven persistent quantum Hall droplet arrays. Inspired by this discovery, we investigate the formation and dynamics of single quantum Hall droplet and droplet arrays in rapidly rotating BECs. Guided by a rigorous theorem on localized many-body states for two-dimensional interacting systems in a magnetic field, we construct single quantum Hall droplet and droplet array states which are shown to be stationary solutions to the Gross-Pitaevskii equation in the rotating frame. The single quantum Hall droplet is shown to be dynamically stable, which underpins its role as the basic unit in a droplet array. The stability of the quantum Hall droplet arrays is demonstrated by their dynamic formation from a phase engineered initial condensate. Our study sheds light onto the nature of the quantum Hall droplet state in a rapidly rotating BEC and offers a new approach for generating and manipulating quantum Hall droplet arrays through designing the initial condensate phase.
format Preprint
id arxiv_https___arxiv_org_abs_2506_17081
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bosonic quantum Hall droplets in rapidly rotating two-dimensional Bose-Einstein condensates
Cao, Zhen
Li, Siying
Li, Zhendong
Liu, Xinyi
Wu, Zhigang
Sun, Mingyuan
Quantum Gases
Recent experiments demonstrate that rapidly rotating Bose-Einstein condensates (BECs) near the lowest Landau level can self-organize into interaction-driven persistent quantum Hall droplet arrays. Inspired by this discovery, we investigate the formation and dynamics of single quantum Hall droplet and droplet arrays in rapidly rotating BECs. Guided by a rigorous theorem on localized many-body states for two-dimensional interacting systems in a magnetic field, we construct single quantum Hall droplet and droplet array states which are shown to be stationary solutions to the Gross-Pitaevskii equation in the rotating frame. The single quantum Hall droplet is shown to be dynamically stable, which underpins its role as the basic unit in a droplet array. The stability of the quantum Hall droplet arrays is demonstrated by their dynamic formation from a phase engineered initial condensate. Our study sheds light onto the nature of the quantum Hall droplet state in a rapidly rotating BEC and offers a new approach for generating and manipulating quantum Hall droplet arrays through designing the initial condensate phase.
title Bosonic quantum Hall droplets in rapidly rotating two-dimensional Bose-Einstein condensates
topic Quantum Gases
url https://arxiv.org/abs/2506.17081