---
_id: '11590'
abstract:
- lang: eng
text: 'We investigate the ground-state properties of weakly repulsive one-dimensional
bosons in the presence of an attractive zero-range impurity potential. First,
we derive mean-field solutions to the problem on a finite ring for the two asymptotic
cases: (i) all bosons are bound to the impurity and (ii) all bosons are in a scattering
state. Moreover, we derive the critical line that separates these regimes in the
parameter space. In the thermodynamic limit, this critical line determines the
maximum number of bosons that can be bound by the impurity potential, forming
an artificial atom. Second, we validate the mean-field results using the flow
equation approach and the multi-layer multi-configuration time-dependent Hartree
method for atomic mixtures. While beyond-mean-field effects destroy long-range
order in the Bose gas, the critical boson number is unaffected. Our findings are
important for understanding such artificial atoms in low-density Bose gases with
static and mobile impurities.'
acknowledgement: This work has received funding from the DFG Project No. 413495248
[VO 2437/1-1] (FB, H-WH, AGV) and European Union's Horizon 2020 research and innovation
programme under the Marie Skĺodowska-Curie Grant Agreement No. 754411 (AGV). ML
acknowledges support by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). SIM acknowledges support from the NSF through a grant for ITAMP at Harvard
University.
article_number: '063036'
article_processing_charge: No
article_type: original
author:
- first_name: Fabian
full_name: Brauneis, Fabian
last_name: Brauneis
- first_name: Timothy G.
full_name: Backert, Timothy G.
last_name: Backert
- first_name: Simeon I.
full_name: Mistakidis, Simeon I.
last_name: Mistakidis
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Hans Werner
full_name: Hammer, Hans Werner
last_name: Hammer
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A.
Artificial atoms from cold bosons in one dimension. New Journal of Physics.
2022;24(6). doi:10.1088/1367-2630/ac78d8
apa: Brauneis, F., Backert, T. G., Mistakidis, S. I., Lemeshko, M., Hammer, H. W.,
& Volosniev, A. (2022). Artificial atoms from cold bosons in one dimension.
New Journal of Physics. IOP Publishing. https://doi.org/10.1088/1367-2630/ac78d8
chicago: Brauneis, Fabian, Timothy G. Backert, Simeon I. Mistakidis, Mikhail Lemeshko,
Hans Werner Hammer, and Artem Volosniev. “Artificial Atoms from Cold Bosons in
One Dimension.” New Journal of Physics. IOP Publishing, 2022. https://doi.org/10.1088/1367-2630/ac78d8.
ieee: F. Brauneis, T. G. Backert, S. I. Mistakidis, M. Lemeshko, H. W. Hammer, and
A. Volosniev, “Artificial atoms from cold bosons in one dimension,” New Journal
of Physics, vol. 24, no. 6. IOP Publishing, 2022.
ista: Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A.
2022. Artificial atoms from cold bosons in one dimension. New Journal of Physics.
24(6), 063036.
mla: Brauneis, Fabian, et al. “Artificial Atoms from Cold Bosons in One Dimension.”
New Journal of Physics, vol. 24, no. 6, 063036, IOP Publishing, 2022, doi:10.1088/1367-2630/ac78d8.
short: F. Brauneis, T.G. Backert, S.I. Mistakidis, M. Lemeshko, H.W. Hammer, A.
Volosniev, New Journal of Physics 24 (2022).
date_created: 2022-07-17T22:01:55Z
date_published: 2022-06-01T00:00:00Z
date_updated: 2023-08-03T11:57:41Z
day: '01'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1088/1367-2630/ac78d8
ec_funded: 1
external_id:
isi:
- '000818530000001'
file:
- access_level: open_access
checksum: dc67b60f2e50e9ef2bd820ca0d7333d2
content_type: application/pdf
creator: dernst
date_created: 2022-07-18T06:33:13Z
date_updated: 2022-07-18T06:33:13Z
file_id: '11594'
file_name: 2022_NewJournalPhysics_Brauneis.pdf
file_size: 3415721
relation: main_file
success: 1
file_date_updated: 2022-07-18T06:33:13Z
has_accepted_license: '1'
intvolume: ' 24'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: New Journal of Physics
publication_identifier:
issn:
- 1367-2630
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Artificial atoms from cold bosons in one dimension
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 24
year: '2022'
...