Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal scaling of quench-induced correlations in a one-dimensional
  channel at finite temperature   It has been shown that a quantum quench of interactions in a one-dimensional
fermion system at zero temperature induces a universal power law $\propto
t^{-2}$ in its long-time dynamics. In this paper we demonstrate that this
behaviour is robust even in the presence of thermal effects. The system is
initially prepared in a thermal state, then at a given time the bath is
disconnected and the interaction strength is suddenly quenched. The
corresponding effects on the long times dynamics of the non-equilibrium
fermionic spectral function are considered. We show that the non-universal
power laws, present at zero temperature, acquire an exponential decay due to
thermal effects and are washed out at long times, while the universal behaviour
$\propto t^{-2}$ is always present. To verify our findings, we argue that these
features are also visible in transport properties at finite temperature. The
long-time dynamics of the current injected from a biased probe exhibits the
same universal power law relaxation, in sharp contrast with the non-quenched
case which features a fast exponential decay of the current towards its steady
value, and thus represents a fingerprint of quench-induced dynamics. Finally,
we show that a proper tuning of the probe temperature, compared to that of the
one-dimensional channel, can enhance the visibility of the universal power-law
behaviour.

22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
16
The categories of this paper are: stat
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol