Effect of Thermal Fluctuation on Spectral Function for the Tomonaga-Luttinger Model

Details Effect of Thermal Fluctuation on Spectral Function for the Tomonaga-Luttinger Model Effect of Thermal Fluctuation on Spectral Function for the Tomonaga-Luttinger Model

1997-05-10

arxiv.org/abs/cond-mat/9705094v1

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 6 eps figures

Scientific paper

10.1143/PTP.98.29

We examine the spectral function of the single electron Green function at finite temperatures for the Tomonaga-Luttinger model which consists of the mutual interaction with only the forward scattering. The spectral weight, which is calculated as a function of the frequency with the fixed wave number, shows that several peaks originating in the excitation spectra of charge and spin fluctuations vary into a single peak by the increase of temperature.

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