Journal
PHYSICAL REVIEW RESEARCH
Volume 2, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.2.012077
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Funding
- (Polish) National Science Center [2017/27/B/ST2/02792, 2016/22/E/ST2/00555]
- Interdisciplinary Centre for Mathematical and Computational Modeling, University of Warsaw (ICM) [G75-6]
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A system of a few attractively interacting fermionic Li-6 atoms in one-dimensional harmonic confinement is investigated. Nontrivial interparticle correlations induced by interactions in a particle-imbalanced system are studied in the framework of the noise correlation. In this way, it is shown that evident signatures of strongly correlated fermionic pairs in the Fulde-Ferrell-Larkin-Ovchinnikov state are present in the system and they can be detected by measurements directly accessible within state-of-the-art techniques. The results convincingly show that the exotic pairing mechanism is a very universal phenomenon and can be captured in systems being essentially nonuniform and far from the many-body limit.
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