Anomalous Self-Energy Features in the 2D Hubbard Model
نویسندگان
چکیده
منابع مشابه
Pseudogaps in the 2D Hubbard Model.
We study the pseudogaps in the spectra of the 2D Hubbard model using both finite-size and dynamical cluster approximation (DCA) quantum Monte Carlo calculations. At half-filling, a charge pseudogap, accompanied by non-Fermi-liquid behavior in the self-energy, is shown to persist in the thermodynamic limit. The DCA (finite-size) method systematically underestimates (overestimates) the width of t...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2008
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.113.395