Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: One and Two-Electron Spectral Function Line Shapes in the Vicinity of
  the Upper-Hubbard Bands Lower Limit   In this paper we derive general expressions for few-electron spectral
functions of the one-dimensional Hubbard model for values of the excitation
energy in the vicinity of the $M^{th}$ upper-Hubbard band lower limit. Here
$M=1,2,...$ is the rotated-electron double occupation, which vanishes for the
ground state and is a good quantum number for all values of the on-site Coulomb
repulsion $U$. Our studies rely on a combination of symmetries of the model
with a recent finite-energy holon and spinon description of the quantum
problem. We apply our general scheme to the one-electron addition spectral
function, dynamical structure factor, and spin singlet Cooper pair addition
spectral function. Our results provide physically interesting information about
the finite-energy spectral properties of the many-electron one-dimensional
quantum liquid.

24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an