Fermi-Luttinger liquid: Spectral function of interacting one-dimensional fermions
arXiv:cond-mat/0702505 · doi:10.1103/PhysRevB.76.155402
Abstract
We evaluate the spectral function of interacting fermions in one dimension. Contrary to the Tomonaga-Luttinger model, our treatment accounts for the nonlinearity of the free fermion spectrum. In a striking departure from the Luttinger liquid theory, the spectrum nonlinearity restores the main feature of the Fermi liquid: a Lorentzian peak in the spectral function on the particle mass-shell. At the same time, the spectral function displays a power-law singularity on the hole mass-shell, similar to that in the Luttinger liquid.
References in corpus (1)
Cited by in corpus (6)
- Spectral function of spinless fermions on a one-dimensional lattice
- Exact exponents of edge singularities in dynamic correlation functions of 1D Bose gas
- Threshold singularities in the dynamic response of gapless integrable models
- Tunneling spectroscopy of Luttinger-liquid structures far from equilibrium
- Collective excitations in one-dimensional ultracold Fermi gases: a comparative study
- Dynamic properties of quantum spin chains: Simple route to complex behavior