Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Temporal intensity correlation of light scattered by a hot atomic vapor   We present temporal intensity correlation measurements of light scattered by
a hot atomic vapor. Clear evidence of photon bunching is shown at very short
time-scales (nanoseconds) imposed by the Doppler broadening of the hot vapor.
Moreover, we demonstrate that relevant information about the scattering
process, such as the ratio of single to multiple scattering, can be deduced
from the measured intensity correlation function. These measurements confirm
the interest of temporal intensity correlation to access non-trivial spectral
features, with potential applications in astrophysics.

16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc