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- W2048221932 abstract "One-particle spectral properties in the normal phase of the two-dimensional attractive Hubbard model are investigated in the weak-coupling regime using the non-self-consistent T-matrix approximation. The corresponding equations are evaluated numerically directly on the real-frequency axis. For temperatures sufficiently close to the superconducting transition temperature, a pseudogap in the one-particle spectral function is observed, which can be assigned to the increasing importance of pair fluctuations." @default.
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- W2048221932 date "2001-05-22" @default.
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- W2048221932 title "Pair-fluctuation-induced pseudogap in the normal phase of the two-dimensional attractive Hubbard model at weak coupling" @default.
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- W2048221932 doi "https://doi.org/10.1103/physrevb.63.224509" @default.
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