Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On decoherence of electromagnetically-induced transparency in atomic
  vapor   We report characterization of electromagnetically induced transparency (EIT)
resonances in the D1 line of Rb-87 under various experimental conditions. The
dependence of the EIT linewidth on the power of the pump field was
investigated, at various temperatures, for the ground states of the
lambda-system associated with different hyperfine levels of the atomic 5S_1/2
state as well as magnetic sublevels of the same hyperfine level. Strictly
linear behavior was observed in all cases. A theoretical analysis of our
results shows that dephasing in the ground state is the main source of
decoherence, with population exchange playing a minor role.

18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics