Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The inherent fluctuations of the pulsed atom laser in F=2 manifold of
  87Rb atoms   We have observed the intensity fluctuations of the F=2 87Rb atom laser at low
output coupling rate. Theoretically, we find that the atom loss of the
condensate due to the output of atom laser leads to fluctuations of the laser
pulses, which is inherent in all state changing out-coupling such as rf and
Raman. Another reason leading to large fluctuations is the interference of
output pulses.

27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex