Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stark Field Modulated Microwave Detection of Molecular Chirality   Patterson, Schnell, \& Doyle, {\it Nature} {\bf 497}, 475 (2013) introduced a
microwave experiment that produces a perpendicularly polarized molecular
emission when chiral molecules are resonantly excited in the presence of a
Stark Field that is then adiabatically switched off before observation of the
emission. The sign of the signal is opposite for two stereo-enantiomers and
thus the magnitude of the signal gives the enantiomeric excess of the sample.
This paper presents a detailed presentation of the theory behind this and
provides expressions for the absolute calculation of the expected signal
strength for different transitions.

20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
1
The categories of this paper are: cs