Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite temperature fidelity susceptibility for one-dimensional quantum
  systems   We calculate the fidelity susceptibility chi_f for the Luttinger model and
show that there is a universal contribution linear in temperature T (or inverse
length 1/L). Furthermore, we develop an algorithm - based on a lattice path
integral approach - to calculate the fidelity F(T) in the thermodynamic limit
for one-dimensional quantum systems. We check the Luttinger model predictions
by calculating chi_f(T) analytically for free spinless fermions and numerically
for the XXZ chain. Finally, we study chi_f at the two phase transitions in this
model.

21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess