Antiferromagnetic noise correlations in optical lattices
(2009) In Physical Review A (Atomic, Molecular and Optical Physics) 80(3).- Abstract
- We analyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic (AF) correlations of fermionic atoms in two-dimensional and three-dimensional optical lattices. Combining analytical and quantum Monte Carlo calculations using experimentally realistic parameters, we show that AF correlations can be detected for temperatures above and below the critical temperature for AF ordering. It is demonstrated that spin-resolved noise correlations yield important information about the spin ordering. Finally, we show how to extract the spin correlation length and the related critical exponent of the AF transition from the noise.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1489423
- author
- Bruun, Georg LU ; Syljuasen, O. F. ; Pedersen, K. G. L. ; Andersen, B. M. ; Demler, E. and Sorensen, A. S.
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 80
- issue
- 3
- publisher
- American Physical Society
- external identifiers
-
- wos:000270383900153
- scopus:70349766937
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.80.033622
- 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
- 44a8bd2e-04a6-4e6c-ab71-eda9fc574cee (old id 1489423)
- date added to LUP
- 2016-04-01 12:15:18
- date last changed
- 2022-01-27 01:06:24
@article{44a8bd2e-04a6-4e6c-ab71-eda9fc574cee, abstract = {{We analyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic (AF) correlations of fermionic atoms in two-dimensional and three-dimensional optical lattices. Combining analytical and quantum Monte Carlo calculations using experimentally realistic parameters, we show that AF correlations can be detected for temperatures above and below the critical temperature for AF ordering. It is demonstrated that spin-resolved noise correlations yield important information about the spin ordering. Finally, we show how to extract the spin correlation length and the related critical exponent of the AF transition from the noise.}}, author = {{Bruun, Georg and Syljuasen, O. F. and Pedersen, K. G. L. and Andersen, B. M. and Demler, E. and Sorensen, A. S.}}, issn = {{1050-2947}}, language = {{eng}}, number = {{3}}, publisher = {{American Physical Society}}, series = {{Physical Review A (Atomic, Molecular and Optical Physics)}}, title = {{Antiferromagnetic noise correlations in optical lattices}}, url = {{http://dx.doi.org/10.1103/PhysRevA.80.033622}}, doi = {{10.1103/PhysRevA.80.033622}}, volume = {{80}}, year = {{2009}}, }