Population imbalance in the extended Fermi-Hubbard model

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2016-08-09
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Mcode
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Language
en
Pages
7
1-7
Series
PHYSICAL REVIEW B, Volume 94, issue 7
Abstract
We study the interplay between population imbalance in a two-component fermionic system and nearest-neighbor interaction using the matrix product states method. Our analysis reveals a parameter regime for the existence of the Fulde-Ferrell-Larkin-Ovchinnikov phase. Furthermore, we find distinct evidence for the presence of hidden order in the system. We present an effective model to understand the emergent oscillations in the string correlations due to the imbalance and show how they can become an efficient tool to investigate systems with imbalance.
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Dhar , A , Kinnunen , J J & Törmä , P 2016 , ' Population imbalance in the extended Fermi-Hubbard model ' , Physical Review B , vol. 94 , no. 7 , 075116 , pp. 1-7 . https://doi.org/10.1103/PhysRevB.94.075116