Nonlocal quantum fluctuations and fermionic superfluidity in the imbalanced attractive hubbard model
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2014-10-30
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
PHYSICAL REVIEW LETTERS, Volume 113
Abstract
We study fermionic superfluidity in strongly anisotropic optical lattices with attractive interactions utilizing the cluster dynamical mean-field theory method, and focusing in particular on the role of nonlocal quantum fluctuations. We show that nonlocal quantum fluctuations impact the BCS superfluid transition dramatically. Moreover, we show that exotic superfluid states with a delicate order parameter structure, such as the Fulde-Ferrell-Larkin-Ovchinnikov phase driven by spin population imbalance, can emerge even in the presence of such strong fluctuations.Description
Keywords
cluster DMFT, Hubbard model, quantum gases, superfluidity
Other note
Citation
Heikkinen, M O J, Kim, D H, Troyer, M & Törmä, P 2014, ' Nonlocal quantum fluctuations and fermionic superfluidity in the imbalanced attractive hubbard model ', Physical Review Letters, vol. 113, no. 18, 185301, pp. 1-5 . https://doi.org/10.1103/PhysRevLett.113.185301