Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum quenches in one-dimensional gapless systems: Does bosonization
  work?   We present a comparison between the bosonization results for quantum quenches
and exact diagonalizations in microscopic models of interacting spinless
fermions in a one-dimensional lattice. We show that important features are
missed by the bosonization technique, which predicts the persistence of
long-wavelength critical properties in the long-time evolution. Instead,
numerical analysis provides puzzling evidences: while the momentum distribution
appears to be consistent with the presence of a singularity at $k_F$,
density-density correlations at small momenta clearly display a thermal-like
behavior, namely ${\bar{N}}_q \simeq {\rm const}$ (where the overbar indicates
the long-time average). This feature at small momenta is preserved in presence
of an interaction term that breaks integrability, together with a rounding of
the singularities at finite $q$'s, showing that the bosonization approach is
not able to represent the time evolution of generic one-dimensional models
after a quantum quench.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess