TY - JOUR
T1 - Fermi-Luttinger liquid
T2 - Spectral function of interacting one-dimensional fermions
AU - Khodas, M.
AU - Pustilnik, M.
AU - Kamenev, A.
AU - Glazman, L. I.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34848912513&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.76.155402
DO - 10.1103/PhysRevB.76.155402
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AN - SCOPUS:34848912513
SN - 1098-0121
VL - 76
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 15
M1 - 155402
ER -