Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultracold nonreactive molecules in an optical lattice: connecting
  chemistry to many-body physics   We derive effective lattice models for ultracold bosonic or fermionic
nonreactive molecules (NRMs) in an optical lattice, analogous to the Hubbard
model that describes ultracold atoms in a lattice. In stark contrast to the
Hubbard model, which is commonly assumed to accurately describe NRMs, we find
that the single on-site interaction parameter $U$ is replaced by a
multi-channel interaction, whose properties we elucidate. The complex,
multi-channel collisional physics is unrelated to dipolar interactions, and so
occurs even in the absence of an electric field or for homonuclear molecules.
We find a crossover between coherent few-channel models and fully incoherent
single-channel models as the lattice depth is increased. We show that the
effective model parameters can be determined in lattice modulation experiments,
which consequently measure molecular collision dynamics with a vastly sharper
energy resolution than experiments in an ultracold gas.

18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg