Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trapping molecules on chips   In the last years, it was demonstrated that neutral molecules can be loaded
on a microchip directly from a supersonic beam. The molecules are confined in
microscopic traps that can be moved smoothly over the surface of the chip. Once
the molecules are trapped, they can be decelerated to a standstill, for
instance, or pumped into selected quantum states by laser light or microwaves.
Molecules are detected on the chip by time-resolved spatial imaging, which
allows for the study of the distribution in the phase space of the molecular
ensemble.

35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an