Supershell structure in trapped dilute Fermi gases
(2005) In Physical Review A (Atomic, Molecular and Optical Physics) 72(5).- Abstract
- We show that a dilute harmonically trapped two-component gas of fermionic atoms with a weak repulsive interaction has a pronounced super-shell structure: The shell fillings due to the spherical harmonic trapping potential are modulated by a beat mode. This changes the "magic numbers" occurring between the beat nodes by half a period. The length and amplitude of this beating mode depend on the strength of the interaction. We give a simple interpretation of the beat structure in terms of a semiclassical trace formula for the symmetry breaking U(3)-> SO(3).
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/211426
- author
- Yu, Yongle LU ; Ögren, Magnus LU ; Åberg, Sven LU ; Reimann, Stephanie LU and Brack, M
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 72
- issue
- 5
- article number
- 051602
- publisher
- American Physical Society
- external identifiers
-
- wos:000233603400016
- scopus:28844501818
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.72.051602
- 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
- b55a244e-6d4a-441d-9a5e-22b1ebf677ec (old id 211426)
- date added to LUP
- 2016-04-01 11:46:55
- date last changed
- 2022-04-20 21:41:37
@article{b55a244e-6d4a-441d-9a5e-22b1ebf677ec, abstract = {{We show that a dilute harmonically trapped two-component gas of fermionic atoms with a weak repulsive interaction has a pronounced super-shell structure: The shell fillings due to the spherical harmonic trapping potential are modulated by a beat mode. This changes the "magic numbers" occurring between the beat nodes by half a period. The length and amplitude of this beating mode depend on the strength of the interaction. We give a simple interpretation of the beat structure in terms of a semiclassical trace formula for the symmetry breaking U(3)-> SO(3).}}, author = {{Yu, Yongle and Ögren, Magnus and Åberg, Sven and Reimann, Stephanie and Brack, M}}, issn = {{1050-2947}}, language = {{eng}}, number = {{5}}, publisher = {{American Physical Society}}, series = {{Physical Review A (Atomic, Molecular and Optical Physics)}}, title = {{Supershell structure in trapped dilute Fermi gases}}, url = {{http://dx.doi.org/10.1103/PhysRevA.72.051602}}, doi = {{10.1103/PhysRevA.72.051602}}, volume = {{72}}, year = {{2005}}, }