Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermi-Luttinger liquid: Spectral function of interacting one-dimensional
  fermions   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.

0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph