Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/73349

TitleOne-particle spectral function singularities in a one-dimensional gas of spin-1/2 fermions with repulsive delta-function interaction
Author(s)Čadež, T.
Nemati, S.
Carmelo, José Manuel Pereira
Issue date2019
PublisherElsevier B.V.
JournalNuclear Physics B
CitationČadež, T., Nemati, S., & Carmelo, J. M. P. (2019). One-particle spectral function singularities in a one-dimensional gas of spin-1/2 fermions with repulsive delta-function interaction. Nuclear Physics B, 942, 45-102. doi: https://doi.org/10.1016/j.nuclphysb.2019.03.013
Abstract(s)The momentum, fermionic density, spin density, and interaction dependencies of the exponents that control the (k,ω)-plane singular features of the one-fermion spectral functions of a one-dimensional gas of spin-1/2 fermions with repulsive delta-function interaction both at zero and finite magnetic field are studied in detail. Our results refer to energy scales beyond the reach of the low-energy Tomonaga-Luttinger liquid and rely on the pseudofermion dynamical theory for integrable models. The one-fermion spectral weight distributions associated with the spectral functions studied in this paper may be observed in systems of spin-1/2 ultra-cold fermionic atoms in optical lattices.
TypeArticle
URIhttp://hdl.handle.net/1822/73349
DOI10.1016/j.nuclphysb.2019.03.013
ISSN0550-3213
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0550321319300756
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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