Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap
(2010) In Physical Review A (Atomic, Molecular and Optical Physics) 81(6).- Abstract
- We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending on the strength of the dipolar interaction and the ratio of transverse to axial oscillator lengths: a regime where the dipolar Bose gas resembles a system of weakly delta-interacting bosons, a second regime where the bosons are fermionized, and a third regime where the bosons form a Wigner crystal. In the first two regimes, the dipole-dipole potential can be replaced by a delta potential. In the crystalline state, the overlap between the localized wave packets is strongly reduced and all the properties of the boson system... (More)
- We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending on the strength of the dipolar interaction and the ratio of transverse to axial oscillator lengths: a regime where the dipolar Bose gas resembles a system of weakly delta-interacting bosons, a second regime where the bosons are fermionized, and a third regime where the bosons form a Wigner crystal. In the first two regimes, the dipole-dipole potential can be replaced by a delta potential. In the crystalline state, the overlap between the localized wave packets is strongly reduced and all the properties of the boson system equal those of its fermionic counterpart. The transition from the Tonks-Girardeau gas to the solidlike state is accompanied by a rapid increase of the interaction energy and a considerable change of the momentum distribution, which we trace back to the different short-range correlations in the two interaction regimes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1630849
- author
- Deuretzbacher, F. ; Cremon, Jonas LU and Reimann, Stephanie LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 81
- issue
- 6
- publisher
- American Physical Society
- external identifiers
-
- wos:000278605600012
- scopus:77953481385
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.81.063616
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- 234c1976-e059-4b9c-95f6-fe163ab7a8ca (old id 1630849)
- date added to LUP
- 2016-04-01 09:52:17
- date last changed
- 2023-11-09 06:11:20
@article{234c1976-e059-4b9c-95f6-fe163ab7a8ca,
abstract = {{We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending on the strength of the dipolar interaction and the ratio of transverse to axial oscillator lengths: a regime where the dipolar Bose gas resembles a system of weakly delta-interacting bosons, a second regime where the bosons are fermionized, and a third regime where the bosons form a Wigner crystal. In the first two regimes, the dipole-dipole potential can be replaced by a delta potential. In the crystalline state, the overlap between the localized wave packets is strongly reduced and all the properties of the boson system equal those of its fermionic counterpart. The transition from the Tonks-Girardeau gas to the solidlike state is accompanied by a rapid increase of the interaction energy and a considerable change of the momentum distribution, which we trace back to the different short-range correlations in the two interaction regimes.}},
author = {{Deuretzbacher, F. and Cremon, Jonas and Reimann, Stephanie}},
issn = {{1050-2947}},
language = {{eng}},
number = {{6}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap}},
url = {{http://dx.doi.org/10.1103/PhysRevA.81.063616}},
doi = {{10.1103/PhysRevA.81.063616}},
volume = {{81}},
year = {{2010}},
}