Universal correlations of one-dimensional interacting electrons in the gas phase

Details Universal correlations of one-dimensional interacting electrons in the gas phase Universal correlations of one-dimensional interacting electrons in the gas phase

1999-06-03

arxiv.org/abs/cond-mat/9906052v1

Phys.Lett. A260 (1999) 516-521

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, Revtex

Scientific paper

10.1016/S0375-9601(99)00587-3

We consider dynamical correlation functions of short range interacting electrons in one dimension at finite temperature. Below a critical value of the chemical potential there is no Fermi surface anymore, and the system can no longer be described as a Luttinger liquid. Its low temperature thermodynamics is that of an ideal gas. We identify the impenetrable electron gas model as a universal model for the gas phase and present exact and explicit expressions for the asymptotics of correlation functions at small temperatures, in the presence of a magnetic field.

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