Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of pressure on the number of dynamically correlated molecules
  when approaching the glass transition   We characterize the heterogeneous character of the dynamics of liquids
approaching the glass transition through an experimental determination of the
number of dynamically correlated molecules N_{corr} as obtained from dynamical
susceptibilities. To do so, we have obtained a new set of dielectric
spectroscopy data for liquid dibutyl-phtalate on a fine and extended
temperature and pressure grid, and we have used it in conjunction with
high-pressure data from the literature. We have been able to evaluate the
contributions to N_{corr} that are due to fluctuations associated with density
and with temperature separately, thereby improving the estimate of N_{corr}. We
find that N_{corr} increases along the glass transition line, and more
generally along any isochronic line, as pressure increases (up to 1 GPa), a
result which is at odds with recent reports and theoretical predictions.

2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th