Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultracold Molecular Assembly   Chemical reactions can be surprisingly efficient at ultracold temperatures (
< 1mK) due to the wave nature of atoms and molecules. The study of reactions in
the ultracold regime is a new research frontier enabled by cooling and trapping
techniques developed in atomic and molecular physics. In addition, ultracold
molecular gases that offer diverse molecular internal states and large electric
dipolar interactions are sought after for studies of strongly interacting
many-body quantum physics. Here we propose a new approach for producing
ultracold molecules in the absolute internal and motional quantum ground state,
where single molecules are assembled one by one from individual atoms. The
scheme involves laser cooling, optical trapping, Raman sideband cooling, and
coherent molecular state transfer. As a crucial initial step, we demonstrate
quantum control of constituent atoms, including 3D ground-state cooling of a
single Cs atom, in a simple apparatus. As laser technology advances to shorter
wavelengths, additional atoms will be amenable to laser-cooling, allowing more
diverse, and eventually more complex, molecules to be assembled with full
quantum control.

8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ