Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing light forces on cold atoms by noise correlation spectroscopy   Enhanced sensitivity in electromagnetically induced transparency (EIT) can be
obtained by the use of noise correlation spectroscopy between the fields
involved in the process. Here, we investigate EIT in a cold ($< 1$ mK) rubidium
vapor and demonstrate sensitivity to detect weak light-induced forces on the
atoms. A theoretical model is developed and shows good agreement with our
measurements, enabling the attribution of the observed effects to the coupling
of the atomic states to their motion. The effects remain unnoticed on the
measurement of the mean fields but are clearly manifest in their correlations.

17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th