Spectral signatures of the Fulde-Ferrell-Larkin-Ovchinnikov order parameter in one-dimensional optical lattices
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2008-09-18
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Language
en
Pages
4
1-4
1-4
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PHYSICAL REVIEW LETTERS, Volume 101, issue 12
Abstract
We address an imbalanced two-component atomic Fermi gas restricted by a one-dimensional (1D) optical lattice and an external harmonic potential, within the mean-field Bogoliubov-de Gennes formalism. We show that characteristic features of the Fulde-Ferrell-Larkin-Ovchinnikov state are visible in the rf spectra and in the momentum-resolved photoemission spectra of the gas. Specially, Andreev states or midgap states can be clearly resolved, which gives a direct experimentally observable signature of the oscillating order parameter.Description
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Bakhtiari , M R , Leskinen , M J & Törmä , P 2008 , ' Spectral signatures of the Fulde-Ferrell-Larkin-Ovchinnikov order parameter in one-dimensional optical lattices ' , Physical Review Letters , vol. 101 , no. 12 , 120404 , pp. 1-4 . https://doi.org/10.1103/PhysRevLett.101.120404
