The fate of 1D spin-charge separation away from Fermi points

ORAL

Abstract

The momentum-resolved dynamic responses of a one-dimensional (1D) electron liquid are singular at the spectrum of the lowest-energy excitation branch, ie. at the spinon spectrum. These power-law singularities survive at arbitrary momentum. We express the corresponding exponents in terms of the spinon spectrum. Special attention is paid to the electron spectral function measured in tunneling experiments.

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Authors

  • Thomas Schmidt

    • Yale University

  • Adilet Imambekov

    • Department of Physics and Astronomy, Rice University, Houston, TX, 77251, USA
    • Rice University

  • Leonid Glazman

    • Yale Applied Physics
    • Yale University