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Soliton-to-droplet crossover in a dipolar Bose gas in one and two dimensions

Schubert, M. LU ; Bland, T. LU orcid ; Mark, M. J. ; Ferlaino, F. and Reimann, S. M. LU (2026) In Physical Review Research 8(2).
Abstract

We analyze a system of dipolar atoms confined in geometries of quasi low dimensionality. Due to the long-range and anisotropic nature of dipolar interactions, the system supports both stable solitons and quantum droplets. In quasi-one-dimensional geometries, the transition between these states is known to manifest either as a first-order phase transition, associated with bistability, or as a smooth crossover. We investigate this transition by calculating the structure factor and showing that the response of the breathing mode provides an experimentally accessible probe. In addition, we identify regions of both bistability and smooth crossover in quasi-two-dimensional geometries. Finally, we connect our findings to previous experimental... (More)

We analyze a system of dipolar atoms confined in geometries of quasi low dimensionality. Due to the long-range and anisotropic nature of dipolar interactions, the system supports both stable solitons and quantum droplets. In quasi-one-dimensional geometries, the transition between these states is known to manifest either as a first-order phase transition, associated with bistability, or as a smooth crossover. We investigate this transition by calculating the structure factor and showing that the response of the breathing mode provides an experimentally accessible probe. In addition, we identify regions of both bistability and smooth crossover in quasi-two-dimensional geometries. Finally, we connect our findings to previous experimental results and delineate the conditions under which two-dimensional dipolar bright solitons can be realized.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
8
issue
2
article number
023090
publisher
American Physical Society
external identifiers
  • scopus:105037462226
ISSN
2643-1564
DOI
10.1103/lcd6-qz83
language
English
LU publication?
yes
id
8a86e98e-e6ff-42e0-8482-7096ee2c83a3
date added to LUP
2026-08-24 14:25:49
date last changed
2026-08-24 14:26:44
@article{8a86e98e-e6ff-42e0-8482-7096ee2c83a3,
  abstract     = {{<p>We analyze a system of dipolar atoms confined in geometries of quasi low dimensionality. Due to the long-range and anisotropic nature of dipolar interactions, the system supports both stable solitons and quantum droplets. In quasi-one-dimensional geometries, the transition between these states is known to manifest either as a first-order phase transition, associated with bistability, or as a smooth crossover. We investigate this transition by calculating the structure factor and showing that the response of the breathing mode provides an experimentally accessible probe. In addition, we identify regions of both bistability and smooth crossover in quasi-two-dimensional geometries. Finally, we connect our findings to previous experimental results and delineate the conditions under which two-dimensional dipolar bright solitons can be realized.</p>}},
  author       = {{Schubert, M. and Bland, T. and Mark, M. J. and Ferlaino, F. and Reimann, S. M.}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Soliton-to-droplet crossover in a dipolar Bose gas in one and two dimensions}},
  url          = {{http://dx.doi.org/10.1103/lcd6-qz83}},
  doi          = {{10.1103/lcd6-qz83}},
  volume       = {{8}},
  year         = {{2026}},
}